Disk Check For No Reason

So I just started up the vm and see that the disk needs to be checked but i did nothing wrong i think its just because i disabled and re-enabled firewall or revived windows messenger heres a screenshot:

 

I Also Have Popups from mozilla firefox but i didnt installed firefox so i think ill install avast

 

I copy images/videos/music to a usb hdd and when after viewing, I delete them (using my media player).
If and when I connect hdd to computer before starting the computer, I always get that 'checking file system', but on (usually) F\. Its 'cause windoze did not delete anything and is down for the count. (←Press any key in X seconds!)
Occasionally, programs change/modify files/registry settings and windows only recognize these changes at startup.

 

when windows says a disk check is necessary, then let it run, and do the following to see if it has any kb in bad sectors:

https://forums.whatthetech.com/index.php?showtopic=102348