I was directed here after posting (and running several tests) in the Malware section.
I have a problem with one of my harddisks (E:). Since some time all the space on it has been taken by something, but I do not know what.
By running the 'Folder size' tool, we found out that all the space has been taken up by back-ups.
When I took a look at the back-up tool I saw that indeed back-ups have been stored on my (E:) disk since 2014. What is strange is that it used to be small amounts of space, until the last back-up that filled up the entire disk...
You can see a screenshot here:
My laptop brand is MSI, the type Ghost. I'm running Windows 7.
Thank you very much in advance for your help!