You should check something first:

Are you able to reboot and press F8 to get in safe mode?
And is everything showing correctly in safe mode.

When you Right-Mouse click on the desktop, do you get a menu?
If so, in the menu is “Arrange Icons” and option?

 
If so, when you select Arrange Icons”, is “Show Icons” checked?
If not, check it.

 
When you move your mouse to the very bottom of the screen does the task bar appear?
If not, does it appear when your move the mouse to one of the edges or top?

 
The Start button is a part of the Taskbar which is a part of explorer.exe.
Now click Ctrl+Alt+Delete to open the Task Manager and see if explorer.exe
is running. If it isn’t, then it may have been disabled by malware.

Run a spyware/virus scan and then try creating a new user account, since
your old one may be corrupted.

If your Start button and Taskbar are missing, there are no desktop
icons, only your wallpaper is showing, your mouse cursor moves and you
can CTRL+ALT+DEL to invoke Task Manager, check the Processes tab to
see if explorer.exe is running.

 
If explorer.exe is not running, it needs to be. explorer.exe “is”
your desktop. Malware can keep it from starting/running.

In Task Manger, click File, New Task and in the Open box, type:
explorer.exe
Click OK.

That should get you going. If not, I recommend you another method to fix this problem.

You can fix this annoying problem via professional register software such as Smartpcfixer and Wisefixer.

SmartPCFixer is an excellent Windows registry cleaner; a system that runs at optimal state. Powerful and effective scanning technology is utilized to help the user quickly identify errors and invalid entries that cause computer slow, freezing or crashing. A set of tools are available for you to restore and maintain a smooth running system and to provide security and safety. It is strongly recommended that you should use our SmartPCFixer built-in backup utilities to backup the registry.

Download & Install Smartpcfixer.

Click “Quick Scan” button to Scan Your Computer.

Click the “Repair All” button and then the problem will be gone completely!

If you encounter this or similar problem, you can solve the problem by below solutions:

Solution 1:

You can try to repair your windows by repair installation:

Do you have a windows install disc?

Please:

Insert the windows install disc

Perform a repair installation

(Run the setup, click ‘repair install’ mode when the wizard pop up for choice)

Solution 2:

Download and install the Windows Update Agent, which can help you to update your windows.

For an x86-based computer:

http://download.windowsupdate.com/WindowsUpdate/redist/standalone/7.4.7600.226/WindowsUpdateAgent30-x86.exe

For an x64-based computer:

http://download.windowsupdate.com/WindowsUpdate/redist/standalone/7.4.7600.226/WindowsUpdateAgent30-x64.exe

Solution 3:

Register the Wups2.dll file

Stop the Automatic Updates service.

1. Open the Command Prompt window. To do this, click Start, click Run, type cmd, and then click OK.

B:At the command prompt, type the following command, and then press ENTER:

net stop wuauserv

Collapse this imageExpand this image

Register the Wups2.dll file.Collapse this imageExpand this image

1.  At the command prompt, type the following command, and then press ENTER:

regsvr32 %windir%\system32\wups2.dll

Note For a computer that is running Windows XP Professional x64 Edition, type the following command, and then press ENTER:

regsvr32 %windir%\syswow64\wups2.dll

2. Click OK if you receive a verification message.

3. Start the Automatic Updates service. To do this, type the following command at the command prompt, and then press ENTER:

net start wuauserv

4.Exit the Command Prompt window. To do this, type exit at the command prompt, and then press ENTER.

But I asked computer technician, he said it is better choosing professional register software to fix this kind of problem for you. As if you are not computer wiz, you should do this by yourself, as you may make this worse. He also recommends Smartpcfixer. It is an appropriate choice!

SmartPCFixer is an excellent Windows registry cleaner; a system that runs at optimal state. Powerful and effective scanning technology is utilized to help the user quickly identify errors and invalid entries that cause computer slow, freezing or crashing. A set of tools are available for you to restore and maintain a smooth running system and to provide security and safety. It is strongly recommended that you should use our SmartPCFixer built-in backup utilities to backup the registry.

SmartPCFixer offers the following features and benefits:

Compatible with windows systems: SmartPCFixer runs on all the major Windows-based systems, Microsoft Windows 7, XP, Vista, 2000, 2003, 2008, 32 and 64 bit.

Thorough system tray scanning: The leading scanning engine will be thoroughly performed every time you run a scan.

Selection: After you run a scan, the number of detected items is displayed in each scan category. You can choose to fix any or all of the items that SmartPCFixer has detected.

Junk file cleaner: This utility helps you clean up all junk files in your system to free up valuable space and allow applications to run more smoothly.

Evidence cleaner: This utility prevents hackers from stealing sensitive information by completely removing all traces of your Internet activity, which is good for your security concerns.

System optimization: There is a set of tools designed to bring about better optimization for your computer system. These tools assist you with managing startup items, desktop, browser objects, Internet, system service, Windows optimization, file extensions and so on. Thus, your system is tuned up to run at the optimal state.

Internet browser fixing: This bonus utility includes BHO (Browser Helper Objects) manager and IE restorer, which detects and removes harmful BHO or plugins and restores Internet Explorer to a healthy performance state.

Uninstall manager: To completely uninstall the unneeded applications including all of their associated files and preferences that are installed on your system.

Backup and restore: SmartPCFixer offers you Registry Backup, Favorites Backup and Folder Backup. You can restore or delete the registry data, favorites and folder information with SmartPCFixer. Besides, the built-in new function of Restore Point enables you to create a system store point so that your system can be restored to a previous state.

Automatic repair: SmartPCFixer offers you the ability to perform an automatic repair of detected items after a scan.

With these powerful functions you should just do:

Download & InstallSmartpcfixer.

Click “Quick Scan” button to Scan Your Computer.

Click the “Repair All” button and then the problem will be gone completely!

Click Here to Visit Smart PC Fixer Official Site

Symptoms:

When you save or move large documents, or otherwise try to manage your files in Windows XP, you intermittently receive the following error message:

Cause:

This error typically occurs when the “Enable write caching on the disk” feature for your hard disk is turned on.

However, if the “Enable write caching on the disk” feature is turned off, this error can occur because the Ultra Direct Memory Access (UDMA) hard disk controller may be configured in either of the following ways:

• You are using a 40-wire connector cable to connect the UDMA drive to the controller instead of the required 80-wire, 40-pin cable.

• The BIOS settings are configured to force faster UDMA modes.

Please follow this instruction to fix it:

To resolve this issue, first check whether the “Enable write caching on the disk” feature is turned on. If it is turned on, turn it off. To do this, follow these steps.

Note If you turn off the “Enable write caching on the disk” feature, your hard disk may perform more slowly and may affect the overall system performance of your computer. Because of this, you may want to monitor system performance after you follow the steps in this section.

To turn off Enable write caching on the disk, follow these steps:

1. Click Start, and then click My Computer.

2. Right click the hard disk, and then click Properties.

3. Click the Hardware tab.

4. Click to select the hard disk, and then click Properties.

5. Click the Policies tab.

6. Click to clear the Enable write caching on the disk check box, and then click OK.

7. Click OK to close the Local Disk (C:) Properties dialog box.

8. Repeat steps 3 through 5 for each hard disk that is installed in your computer.

If these steps resolve the error message, you are finished.

But some friends will say I still remain this annoying error. Then what should I do? Please help me! OK, I will introduce you an easy and efficient way to fix computer error and problems and make you become a computer wiz. Others will admire and envy you. So do you want to know what the secret is? It is Smarpcfixer. Professional computer software is your best choice. As it is easy-to-use and totally risk-free. What are you worried about. If you have Smartpcfixer, it means you have six computer softwares at the same rime as its powerful functions.

SmartPCFixer is an excellent Windows registry cleaner; a system that runs at optimal state. Powerful and effective scanning technology is utilized to help the user quickly identify errors and invalid entries that cause computer slow, freezing or crashing. A set of tools are available for you to restore and maintain a smooth running system and to provide security and safety. It is strongly recommended that you should use our SmartPCFixer built-in backup utilities to backup the registry.

How to Fix Delayed Write Failed via Smartpcfixer?

Download & Install Smartpcfixer.

Click “Quick Scan” button to Scan Your Computer.

Click the “Repair All” button and then the problem will be gone completely!

Click Here to Visit Smart PC Fixer Official Site

What is Virtual Memory?

If your computer lacks the random access memory (RAM) needed to run a program or operation, Windows uses virtual memory to compensate.

Virtual memory combines your computer’s RAM with temporary space on your hard disk. When RAM runs low, virtual memory moves data from RAM to a space called a paging file. Moving data to and from the paging file frees up RAM to complete its work.

The more RAM your computer has, the faster your programs will generally run. If a lack of RAM is slowing your computer, you might be tempted to increase virtual memory to compensate. However, your computer can read data from RAM much more quickly than from a hard disk, so adding RAM is a better solution.

How to change Virtual Memory?

Open System by clicking the Start button, clicking Control Panel, clicking System and Maintenance, and then clicking System.

In the left pane, click Advanced system settings. If you are prompted for an administrator password or confirmation, type the password or provide confirmation.

On the Advanced tab, under Performance, click Settings.

Click the Advanced tab, and then, under Virtual memory, click Change.

Clear the Automatically manage paging file size for all drives check box.

Under Drive [Volume Label], click the drive that contains the paging file you want to change.

Click Custom size, type a new size in megabytes in the Initial size (MB) or Maximum size (MB) box, click Set, and then click OK.

Increases in size usually don’t require a restart, but if you decrease the size, you’ll need to restart your computer for the changes to take effect. Our Lionsea computer technicians recommend that you don’t disable or delete the paging file.

We also recommend you fixing this problem via professional register software. Smartpcfixer is a good choice! You can not only fix Low Virtual Memory problem, but also other computer problems such as BSOD, High CPU, computer freezing and so on. Smartpcfixer has five main functions and each function includes several branches. You can deal with your computer problems with many aspects.

Key features:

• Scan and Clean: This one is as its name suggests the tool to scan the registry for problems and clean them after they’re found. There’s also the Junk File Cleaner and Evidence Cleaner (for browser history, cookies etc..) which can be used to clear sensitive personal information from the computer.

• System Optimize: This is the tool to be used for optimizing and speeding up the computer. The tool can optimize your services, desktop and startup to make your computer run faster.

• System Fix: This can be used to scan for and diagnose non-registry related problems your pc may have. The tool can diagnose and fix problems on broken shortcuts, winsock2 problems, broken file associations, ActiveX problems etc.

• System Tools: These supplementary set of tools include: File Splitter, Disk Defrag, BHO Manager, ActiveX Blocker, IE Management, IE Restore, IE Toolkit, Uninstall Manager and Windows Update.

• Backup: Backing up the registry and your computer with this tool ensures you’re always safe in case you accidentally delete an important file.

What you need to do is:

Download & Install Smartpcfixer.

Click “Quick Scan” button to Scan Your Computer.

Click the “Repair All” button and then the problem will be gone completely!

Windows cannot use this hardware device because it has been prepared for safe removal, but it has not been removed from the computer. (Code 47)

Resolutions:

Here are some things that you can try to resolve this problem.

Reconnect the device:

This error code occurs only if you used the Safe Removal application to prepare the device for removal, or pressed a physical eject button.

Reconnect the device to your computer:

 
Disconnect this device from the computer, and then connect it again.

 
Restart your computer:

Make sure that the device is connected correctly to your computer, and then restart your computer. Click Start, click Shut Down, and then select Restart in the Shut Down Windows dialog box to restart the computer.

Recommended resolutions:

Smartpcfixer is the program that can be immediately downloaded and works through giving a quick scan on the entire drive while automatically repairing the problems in it. After the repair, users will not only notice an instant change in speed of the system but at the same time, there will also be lesser cases of freezing, reduced system errors as well as a renewed general computing and speed power.

Smartpcfixer is one of the top ranking registry cleaners especially dedicated for fixing computer errors and optimizing system settings.

Details And Features:

• Scan and Clean: This one is as its name suggests the tool to scan the registry for problems and clean them after they’re found. There’s also the Junk File Cleaner and Evidence Cleaner (for browser history, cookies etc..) which can be used to clear sensitive personal information from the computer.

• System Optimize: This is the tool to be used for optimizing and speeding up the computer. The tool can optimize your services, desktop and startup to make your computer run faster.

• System Fix: This can be used to scan for and diagnose non-registry related problems your pc may have. The tool can diagnose and fix problems on broken shortcuts, winsock2 problems, broken file associations, ActiveX problems etc.

• System Tools: These supplementary set of tools include: File Splitter, Disk Defrag, BHO Manager, ActiveX Blocker, IE Management, IE Restore, IE Toolkit, Uninstall Manager and Windows Update.

• Backup: Backing up the registry and your computer with this tool ensures you’re always safe in case you accidentally delete an important file.

Download & Install Smartpcfixer.

Click “Quick Scan” button to Scan Your Computer.

Click the “Repair All” button and then the problem will be gone completely!

This device is not present, is not working properly, or does not have all its drivers installed. (Code 24)

Cause:

The device is installed incorrectly. The problem could be a hardware failure, or a new driver might be needed.

Devices stay in this state if they have been prepared for removal. After you remove the device, this error disappears.

Resolution:

Remove the device, and this error should be resolved.

This is simple, right? But this may not fix your problem. If so, you can download Smartpfixer to fix your problem for you.

Smartpcfixer is the program that can be immediately downloaded and works through giving a quick scan on the entire drive while automatically repairing the problems in it. After the repair, users will not only notice an instant change in speed of the system but at the same time, there will also be lesser cases of freezing, reduced system errors as well as a renewed general computing and speed power.

Smartpcfixer is one of the top ranking registry cleaners especially dedicated for fixing computer errors and optimizing system settings.

Key features:

• Scan and Clean: This one is as its name suggests the tool to scan the registry for problems and clean them after they’re found. There’s also the Junk File Cleaner and Evidence Cleaner (for browser history, cookies etc..) which can be used to clear sensitive personal information from the computer.

• System Optimize: This is the tool to be used for optimizing and speeding up the computer. The tool can optimize your services, desktop and startup to make your computer run faster.

• System Fix: This can be used to scan for and diagnose non-registry related problems your pc may have. The tool can diagnose and fix problems on broken shortcuts, winsock2 problems, broken file associations, ActiveX problems etc.

• System Tools: These supplementary set of tools include: File Splitter, Disk Defrag, BHO Manager, ActiveX Blocker, IE Management, IE Restore, IE Toolkit, Uninstall Manager and Windows Update.

• Backup: Backing up the registry and your computer with this tool ensures you’re always safe in case you accidentally delete an important file.

Download & Install Smartpcfixer.

Click “Quick Scan” button to Scan Your Computer.

Click the “Repair All” button and then the problem will be gone completely!

- Try it now for FREE!
You won’t be disappointed.

Symtom: Windows is removing this device. (Code 21)

Resolution:

This error means that Windows is in the process of removing the device. However, the device has not yet been completely removed. Here are some things that you can try to resolve this problem.

• Wait several seconds, and then press the F5 key to update the Device Manager view.

If that does not resolve the problem, restart your computer. Click Start, click Shut Down, and then select Restart in the Shut Down Windows dialog box to restart the computer.

Recommended resolution:

Smartpcfixer is one of the top ranking registry cleaners especially dedicated for fixing computer errors and optimizing system settings.

 
SmartPcFixer™ have a high-performance detection algorithm that will quickly identify missing and invalid references in your Windows registry. With a few easy steps SmartPcFixer™ will scan your entire Windows registry for any invalid or obsolete entries and provide a list of the registry errors found. After that you can choose to clean list items with selection or automatically repair them all.

Scan & Clean IE Tools Registry Backup System Optimize

A Toolkit designed to scan, diagnose and your operating system. Using it results in better optimization, manages startup and desktop, assists you with maintaining browser objects, internet options, system service, and repairs file extensions. With this arsenal of powerful, sophisticated utilities your system is tuned to run at its optimal state. Included are Easy Repair Wizard, Error Utilities, File Association fixer, Register ActiveX, Shortcuts Fixer, Winsock2 Repair toolkit, Dll Fixer.

SmartPCFixer™ is a top-ranking error-resolution registry cleaner which will fix the computer errors and optimize the system settings. You can scan, clean, optimize, and keep your PC much healthier with it!

To fix the problem, do one of the followings:

• Double-click the  SmartPCFixer  icon on your desktop.
• Select Start | All Programs | SmartPCFixer | SmartPCFixer

Windows cannot start new hardware devices because the system hive is too large (exceeds the Registry Size Limit). (Code 49)

Cause:

The system hive has exceeded its maximum size and new devices cannot work until the size is reduced. The system hive is a permanent part of the registry associated with a set of files that contains information related to the configuration of the computer on which the operating system is installed. Configured items include applications, user preferences, devices, and so on. The problem might be specific devices that are no longer attached to the computer but are still listed in the system hive.

Resolution:

Here are some things that you can try to resolve this problem.

This content is designed for an advanced computer user.

Uninstall devices that you are no longer using

To resolve this problem, you should first try uninstalling any hardware devices that you are no longer using.

1. Set up Device Manager to show devices that are no longer connected to the computer.

a. Click Start, and then click Run.

b.In the Open box, type cmd. The Command Prompt window opens.

c. At the prompt, type the following command, and then press Enter:

set devmgr_show_nonpresent_devices=1

2. In Device Manager, click View, and then click Show hidden devices. You will now be able to see devices that are not connected to the computer.

 .        Select the device that you want to uninstall.

a. On the device Properties dialog box, click the Driver tab, and then click Uninstall. Follow the instructions.

b. Restart your computer.

3. Uninstall the devices that you no longer need.
4. Check the device Properties dialog box in Device Manager to see whether the error is resolved.

Recommended resolution: Smartpcfixer

Scan and Clean: This one is as its name suggests the tool to scan the registry for problems and clean them after they’re found. There’s also the Junk File Cleaner and Evidence Cleaner (for browser history, cookies etc..) which can be used to clear sensitive personal information from the computer.

System Optimize: This is the tool to be used for optimizing and speeding up the computer. The tool can optimize your services, desktop and startup to make your computer run faster.

System Fix: This can be used to scan for and diagnose non-registry related problems your pc may have. The tool can diagnose and fix problems on broken shortcuts, winsock2 problems, broken file associations, ActiveX problems etc.

System Tools: These supplementary set of tools include: File Splitter, Disk Defrag, BHO Manager, ActiveX Blocker, IE Management, IE Restore, IE Toolkit, Uninstall Manager and Windows Update.

Backup: Backing up the registry and your computer with this tool ensures you’re always safe in case you accidentally delete an important file.

Click Here to Visit Smart PC Fixer Official Site

Download & Install Smartpcfixer.

Click “Quick Scan” button to Scan Your Computer.

Click the “Repair All” button and then the problem will be gone completely!

This device is disabled because the firmware of the device did not give it the required resources. (Code 29)

Resolution:

Enable the device in the BIOS.

Basic Input/Output System (BIOS), also known as the system BIOS or ROM BIOS The name originated from the Basic Input Output System used in the CP/M operating system. The BIOS software is built into the PC, and is the first software run by a PC when powered on. The fundamental purposes of the BIOS are to initialize and test the system hardware components, and to load an operating system or other program from a mass memory device. The BIOS provides a consistent way for application programs and operating systems to interact with the keyboard, display, and other input/output devices. Variations in the system hardware are hidden by the BIOS from programs that use BIOS services instead of directly accessing the hardware.

Enable the device in the BIOS

Enable the device in the BIOS of the device. For information about how to make this change, you should refer to the hardware documentation or contact the hardware vendor.

So there is an easy and recommended resolution:

Smartpcfixer is one of the top ranking registry cleaners especially dedicated for fixing computer errors and optimizing system settings.
The main features:

• Scan and Clean: This one is as its name suggests the tool to scan the registry for problems and clean them after they’re found. There’s also the Junk File Cleaner and Evidence Cleaner (for browser history, cookies etc..) which can be used to clear sensitive personal information from the computer.

• System Optimize: This is the tool to be used for optimizing and speeding up the computer. The tool can optimize your services, desktop and startup to make your computer run faster.

• System Fix: This can be used to scan for and diagnose non-registry related problems your pc may have. The tool can diagnose and fix problems on broken shortcuts, winsock2 problems, broken file associations, ActiveX problems etc.

• System Tools: These supplementary set of tools include: File Splitter, Disk Defrag, BHO Manager, ActiveX Blocker, IE Management, IE Restore, IE Toolkit, Uninstall Manager and Windows Update.

• Backup: Backing up the registry and your computer with this tool ensures you’re always safe in case you accidentally delete an important file.

How to fix Code 29 via Smartpcfixer?

Download & Install Smartpcfixer.

Click “Quick Scan” button to Scan Your Computer.

Click the “Repair All” button and then the problem will be gone completely!