full scan for viruses I can not start

I want to ask why when I run a full scan for viruses I can not start. shows 0 percent and can not go at all.

To my knowledge this is just a gui / progress bar bug, scan should still work? Posted many many times

Have you tried a avast repair and reboot to see if anything change?

and before this happened but the second or third time started or the next day the first time begins. but now I have already tried the third day already 6 or 7 times and it does not work.

Before avast can display the progress of a scan it must first determine what is to be scanned.

Depending on the size of the data to be scanned this time would vary, what is the rough size of the data you want scanned according to the scan settings ?

Have you made any changes to the default settings of the Full Scan ?

I have not made any changes to the settings. normal scanning for me is about 40 minutes. now sits for more than an hour and is at 0 percent.

You could try avastUI > Settings Troubleshooting > Restore Factory Defaults and see if that helps.

You can save your settings before restoring factory defaults. AvastUI > Settings > General - scroll down to the bottom - Back up settings.

Thank you for the advice. after I did them finally started. although before the scan was done for 40 minutes, now in 40 minutes it just started counting the percentages

You’re welcome.

That time frame to start is I would say not normal even with a lot of data to be scanned (you didn’t say the size of the data being scanned). I rarely do on-demand scans, usually during beta testing or as a a result of a topic in the forums, but not anything like that duration/wait on 0%. That said my systems are very lean, if I’m not using a program for some time I consider removing it.

  • With a resident (on-access) scanner the need for on-demand scans is much depreciated. For the most part dormant/inert files are being scanned, the other active files are going to be scanned by the resident shields when they are activated. This is why I rarely run an on-demand scan.

The Smart Scan would be more of an exception as it doesn’t just scan for malware and the areas it does scan for malware are more selective than basically scanning everything on your system.