Solution for System crash after CAVS updates

Hi All,
We are extremely sorry for the last CAVS beta 2.0 updates which has wrongly detected winlogon.exe and quarantined it. The false positive is fixed and is available through updates. We have found some hole in our testing procedure and fixed it now and such things should not happen again.

The resolution of this bug is to copy the winlogon.exe in windows\system32 directory. There are few solutions which has worked fine for users. Please follow any of the following solution which is easy for you.

solution1: https://forums.comodo.com/index.php/topic,6488.msg48100.html#msg48100

solution2: https://forums.comodo.com/index.php/topic,6483.msg47973.html#msg47973

solution3: https://forums.comodo.com/index.php/topic,6483.msg48192.html#msg48192

I must accept that Beta testers were helping a lot for making the product stable, but unfortunately last CAVS beta 2 updates has crashed the system. Again, we are very-very sorry and such things will not be repeated.

regards
Kishor

solution4: sfc /scannow?