Avast 100% disk usage

Hello there, I’ve been recently experiencing this issue where the “Avast Service” process will be causing a lot of disk usage, bumping it to 100% and sometimes making the pc unusable with no warning.

I’ve already tried reinstalling or repairing the installation with just the minimal components, yet it’s still happening.

Windows version: Windows 10

Avast edition (Free / Pro / etc) and version numbers (right click tray icon, “About Avast”): Avast Free Antivirus, 20.4.2410 (build 20.4.5312.580)

Avast settings you changed from default: nothing really I think, maybe just language from Italian to English, minimal protection instead of default and some privacy options

When the problem first happened, and when it repeats, what triggers it: it seems random, though it tends to happen close to pc startup and after analyzing some files

Any steps you already took to try fixing the problem: switching to minimal protection, reinstalling the program

Any recent changes to your system, its configuration, or your network: no

Update to the latest version (20.5.2415): https://forum.avast.com/index.php?topic=235204.0

Hello,

Avast Cleanup can cause huge Disk usage.
I updated Avast to the latest version and removed the components I don’t need right now (I can reinstall them later): https://support.avast.com/en-ww/article/96/