Avast Still 0% Full Virus Scan???

Full virus scan > 0% for 7 hours then cancel scan.
Again avast repair > Happen it

/!
Incompatible antivirus detected:
Microsoft Security Essentials
We strongly recommend uninstalling it so that your computer’s performance is not affected.
[Close]

What happen it? not do understand :-\

Please, avast will make quick video guide on Youtube more than forum. Thank sir!

Yes MSE need to go before even trying to install avast (or any other av).

same thing is happening to me and I have been using AVAST premier for years