How to Solve Error 643

Error Code 643 is a common error of computer problem. It often occurs in the form of “0X643” or “1603”, many people have been bothered by this error. Don’t worry, we will help you figure it out in this article.

When users are downloading updates for the .Net Framework, they often receive 643 error. The 0×643, or 643, error message occurred with updates from Microsoft .NET Framework versions 1.0, 1.1, 2.0, 3.0 or 3.5.

The causes of Error 643

According to Microsoft, the error code 0×643 is generic and is shown when an installation does not go correctly. Since you need to download .NET Framework files before you can install the updates, it’s more likely the files have become corrupted. The other listed cause for a 0×643 error is as inconsistency in the MSI database.

How to fix Error 643?

Method One: The most common Windows-based problems can be resolved using the Microsoft Fix It Wizard. You can also try using different methods of installing the .NET Framework updates, such as downloading the update directly from the Windows Update website rather than letting Windows download it in the background. Finally, Microsoft provides a .NET Framework tool that removes multiple instances of the file. Download the tool and follow the on-screen prompts to remove the program. Reboot and reinstall the updates.

Method Two:

Choose Smartpcfixer to help you solve the problem automatically. SmartPCFixer™ will help identify and fix Windows’ invalid registry entries. By running Scan & Cleaner as part of scheduled maintenance, it will keep your PC from freezing or frequent crashes. Using it will reduce the probability of you getting a “blue screen”, program not responding or lock up.

How to Fix it with Smartpcfixer?

STEP 1 Download Smartpcfixer & Install it. (Note: If the download link doesn’t work you may need to download it from a Download Mirror).

STEP 2 Scan Your PC for Errors.

STEP 3 Click the “Fix All” Button to Repair Your PC.