How To Resolve Window Update Error Code 66a with Webroot?

Some users receive Window update error code 66a, while shutting down or booting the OS. To resolve this issue, you should do a deep scan by using Webroot antivirus via In this blog post, you will read the solution to fix Window Update Error Code 66a.

Method To Resolve Window Update Error Code 66a:

1. Run SFC Scan:

First, you should visit to Start and then write cmd in the field. After this, you should right-click on Command Prompt and then choose Run as Administrator. Now, you need to write the command:

sfc /scannow

Here, you should wait for the scanning procedure to finish and then just restart your computer system. Lastly, you will see all the corrupted files will be replaced on reboot.

2. Run System Restore in Safe Mode:

First, you should shut down your PC and then again turn it on. Now, you should visit to the Run in Safe Mode option and then press Enter. After this, you should visit to Start, and then write system restore, and just press Enter key. At this point, you need to move further with all the directions to get back to restore point. At last, you should wait for the procedure to finish and then just reboot.

3. Revert Windows Update Changes:

You should open Settings app by pressing Windows Key + I together. If Settings app opens up on your screen, you should go to the Update & Security section. Now, you should select the Recovery section from the left side of the screen. Here under the Go back to the previous version of Windows 10 option, you need to tap on Get started. Then, you have to keep your files and then begin the reset process. When you uninstall the recent updates, just check the issue is solved or not.

4. Scan PC for Malware:

If you want to protect your device from such Window errors, then you must install Webroot antivirus in your device via Because sometimes users gets the emails which has random links which contain hidden malware. This malware compromise your systems and hackers steal the sensitive information which results in Windows Update error code 66a. Hence, it is suggested you should download and install Webroot antivirus to deal with virus-related problems. It will also secure your gadget from phishing, trojans, spyware and other type of other harmful infections.

5. Reinstall .NET Framework:

For this, you should tap on the Start button and then hit on Control Panel. At this point, you should tap on Programs and Features or Uninstall a Program just under the Programs category. Now in the list of installed programs, you should search for .NET framework. Here, you should tap on Uninstall button which is located at the top of the program list and move further with the directions to uninstall .NET framework. Then, you have to Restart your PC and just download the .NET framework. At last, you should double-tap on the executable file, and follow the direction to install .NET framework.

If the user wants to install Webroot SecureAnywhere, then you should visit to the site via