I'm having a hard time trying to find out what's causing the loss of disk space on C:/. I know this topic has been raised many times already and I have followed the advice but the issue still remains and maybe someone can help me diagnose what's the cause of it.
My C: partition is 100GB large, I have already uninstalled every redundant program, leaving only the most important ones. I do not store junk like music/photos etc. on this partition, yet it's still jammed, at the worst point reaching only 300mb free space left.
I run glary utilities cleanup every now and then. It's always a max ~1gb gain.
Restore points and system protection are disabled. Hibernation mode is disabled. File indexing is disabled.
The fragmentation of the disk (HDD) has been assessed for 2%.
Windows Update is set to "ask before downloading and installing" for about a month.
I have run DiskCleanup yesterday and it has found almost 9gb of space to free up. Today after rebooting the pc I've found my C: partition again almost fully loaded, having only 2gb left. DiskCleanup has shown only 30mb of data to be deleted. Glary has found only 500mb of junk.
The antivirus in not finding any viruses or malware. I honestly don't know what else can I do.
WinDirStat has given me the following output:
windir.jpg 59.07KB 1 downloads
(I can provide an english version if that changes anything)
Could anyone help me with this issue?