So, there's quite a story behind my problems...For starters, everything is connected to the Thunderbird inbox. I just scanned my computer less than one week ago, and I found the following:

HEUR: Trojan.VBS.SAgent.gen

HEUR:Trojan.BAT.Alien.gen

Neither one of them can be removed in kaspersky basic. And Malewarebytes can't touch them either...But the madness doesn't end there, because a couple of days ago I started to notice that my browser windows and all windows icons got all locked up. They only get unlucked if I push ctrl + alt + delete. So I have to sitt and do that after a couple of minutes, so this is a real big pain in the butt...

I've never had these problems before, so this is all new to me. So I would be really happy if someone could help me out with this problem.

@Mr Tech Hi,

23 minutes ago, Mr Tech said:

Thunderbird inbox

Please try this :

1)⚠️ Backup on extrenal device 'C:\Users\UserName\AppData\Roaming\Thunderbird' or TB → Tools → Export (*)
(*) Exported ZIP file larger than 2GB can't be imported !!!

2) TB → 'Inbox folder' → Right click → Properties → Repair folder.

Repair folder

3) TB → Select 'Inbox Folder' → File → Compact folder
→ https://support.mozilla.org/en-US/kb/compacting-folders#w_why-is-compact-required

Compact folders

4) TB Settings → General → Disk Space → Clear cache

Clear cache

5) Reboot and run a full scan ?