smart scan very slow

Avast Free Antivirus / Premium Security
1

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?

2

Repair Avast:

  1. Control Panel → Add/Remove programs → Avast
  2. Click on ‘Repair’.
  3. Follow instructions.
  4. Reboot.
3

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

4

Bump.
Any other suggestions?
snake-oil?
Thanks

5
  • Other security related software installed…?
  • Which AV(s) did you use before Avast…?
6

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

7
  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.
8

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.

9

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

10

Known bug, devs are working on it.