Windows Error 646 And The Solutions

 

Windows update error 646 can sometimes occur in user’s computer. Many users may think that windows update error is not important because it just means that an update cannot be installed in the computer. Actually windows update is very important for users to keep computer safe and healthy. Windows updates are to solve bugs and mistakes in Windows system to enhance the system performance and help users better run their computer. If windows update is ignored or just closed, user’s system will become vulnerable and easy to be attacked.

 

If you have seen windows update error 646 in your computer at the moment, I am glad to tell you that you may be able to fix it if you read this article carefully. You just have to follow several steps, then you are very likely to solve the issue:

 

Step 1: Disable your protective software

 

Many antivirus and firewall software will tend to refuse any automatic download from websites without manual permission click. Since windows update is always set to automatic, protective software may see it as dangerous and block it from backstage. What you have to do is just temperarily disable your antivirus and firewall, then try the windows update again. It shall fix the issue.
 

Step 2: Fix corrupted windows file

• Press “Start” and “R” simultaneously.
• Type “cmd” (without the quotes) to launch the Command Prompt.
• Type in the following commands, one at a time:
• net stop WuAuServ
• cd %windir%
• ren SoftwareDistribution SD_OLD
• net start WuAuServ
• reboot

 

Step 3: Fix Windows update error with a windows update fixer

Windows update error can be caused by some complicated windows errors. We will not suggest users manually edit registry in case more serious mistakes are caused. If you have encountered windows update error 646 and cannot fix it with above two steps, you may download a windows update fixer and get it fix the error automatically for you.