smart scan very slow

[Adam Kertesz]

Windows 10 Pro, 64 bit, Avast free (17.2.2288). 2 year old fast Dell laptop, 8 GB memory, 140 GB files.
 Smart scan, which ran 2.5-3 minutes in previous version, does not finish in 35 minutes.
Any suggestions?

[Asyn]

Repair Avast:
1. Control Panel -> Add/Remove programs -> Avast
2. Click on 'Repair'.
3. Follow instructions.
4. Reboot.

[Adam Kertesz]

Followed instructions to a T; started smart scan after reboot, after 34 minutes still 0%.
Have another bottle of snake oil?

[Adam Kertesz]

Bump.
Any other suggestions?
snake-oil?
Thanks

[Asyn]

- Other security related software installed..?
- Which AV(s) did you use before Avast..?

[Adam Kertesz]

On this machine, Avast was the first and only AV.
Malwarebytes Anti malware 3.0, demoted to free version.

[Asyn]

1. Download Avast Free Antivirus: https://files.avast.com/iavs9x/avast_free_antivirus_setup_offline.exe
2. Follow instructions: https://www.avast.com/uninstall-utility (Run this tool for all prior installed Avast versions..!!)
3. Reinstall Avast with the downloaded installer from point 1.
4. Reboot.

[Adam Kertesz]

Downloaded Avast offline installer.
Downloaded Avastclear, ran.
Rebooted, installed Avast.
Removed  options not needed.
Ran smartscan - 30 minutes. Checked options - all harddrives were marked.
Removed all harddrives from options.
Ran smartscan - 2 minutes. Probably I should have done it earlier.
(If, at the end, I click on "details", the scan restarts. Oh well, you can't have everything)
Many thanks.

[Adam Kertesz]

Tried the full scan, after 82 minutes still at 0 %. no good, no good at all...

[Asyn]

Tried the full scan, after 82 minutes still at 0 %. no good, no good at all...

Known bug, devs are working on it.