I performed all the scans in order to find malware and it didn't find anything... I'm assuming that there is a problem, because for some odd reason I can't change the password in the internet options anymore (the apply button is locked). I am the administrator and no one else except me uses this computer.
I also noticed that the explorer crashes frequently in the last few days.... I mainly use firefox, but for work i need explorer as the connection to a server (related to my work, I'm working from home) doesn't work well with firefox.
I frequently update through Microsoft, so my system is up to date...
Any idea what to do?