Thank you for your time on this.

Deleted Avira, no change
Switched off Defender, no change
Tried to do a windows update (they still appear to be offering them for 7. It stops half way through installation.
Tried to download Avira again. Guess what!
No downloads allowed.

I edited the registry ey as described in the
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Attachments

The problem didn't go away but after reading the next link you sent..
https://www.google.com/search?q=scanwithantivirus+registry+key and https://www.google.com/search?q=Interrupted%3A+Virus+Scan+Failed
I read that it should be set at 1 not 3.
Job done.
Next thing, see if Windows will update again.
Will report bac on that too.

Thank you for your time on this.

Deleted Avira, no change
Switched off Defender, no change
Tried to do a windows update (they still appear to be offering them for 7. It stops half way through installation.
Tried to download Avira again. Guess what!
No downloads allowed.

I edited the registry ey as described in the
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Attachments

The problem didn't go away but after reading the next link you sent..
https://www.google.com/search?q=scanwithantivirus+registry+key and https://www.google.com/search?q=Interrupted%3A+Virus+Scan+Failed
I read that it should be set at 1 not 3.
Job done.
Next thing, see if Windows will update again.
Will report bac on that too.

Interrupted: Virus Scan Failed

Hello. I have searched this site for info about this issue & come up with a 7 year old string 29 pages long which does not get to the bottom of it. I can't be the only one.

The problem is this..
I can't download anything. The progress bar goes green but as soon as I click anything it says Interrupted: Virus Scan Failed.
That is hopeless & I can't use it. Please can somebody help. Thanks in advance.

I am running Version:74.0.3911.144 on Windows 7 pro 64.
Avira free antivirus, There is no effect when real time scanning is switched off