I initially got a prompt that my drive was low on space so I cleaned up some programs and ran CCleaner as well. I also ran WinDirStat to see which files I could remove. At the end of it, I managed to clear up 600MB in C:\ and 6GB in D:\.
Right away I noticed that the space in those drives changed each time I view them in My Computer. The size in C:\ fluctuates between having 10-80 MB left (when I just cleared 600 MB) while D:\ stays at 2 GB (when I should have 6 GB). I keep getting notifications that I'm out of disc space and repeated attempts of running CCleaner and deleting files/programs doesnt help. My drives keep filling up instantly after I clean them.
I ran MSE and Malwarebytes anti malware to no avail. Do I have a virus?