A couple of days ago, I was prompted to update my Avast software (paid not free version). Ever since then, I’ve been unable to load into Windows. All I get is either the loading screen (and then error messages) or a black screen and cursor icon.
I’ve searched and identified that I’m not the only one with this problem, but it appears that the most successful fix was posted by a computer programmer. (I’m not.)
How can I either reestablish my system prior to updating or remove the problem so that I can use my computer?
Insert the USB into the sick computer and start the computer. First ensuring that the system is set to boot from USB
Note: If you are not sure how to do that follow the instructions Here
Windows 7 and Vista screenshots
When you reboot you will see this. Click repair my computer
notepad and press Enter.
The notepad opens. Under File menu select Open.
Select “Computer” and find your flash drive letter and close the notepad.
In the command window type e:\frst64.exe or e:\frst.exe dependant on system
and press Enter Note: Replace letter e with the drive letter of your flash drive.
The tool will start to run.
When the tool opens click Yes to disclaimer.