Hard drive showing full when it's not

[dancook]

My wife's laptop has a ~200gb SSD in it, the partition is ~200gb usage is showing 99%

I tried various ways of checking for the culprit, and ended up with WinDirStat which confirms about 90gb space usage based on folders

The windows/installer folder accounts for about 60gb or data, programs and documents are not considerable. Windows cleanup only offer minimal space recovery.

I cannot see where the other ~110gb is coming from

 

[dancook]

try diskcleanup and also select clean up system files see what it finds.

The windows one? finds a few mb of files. Nothing noteworthy

 

[dancook]

Thanks for help,

It led me to google search 'windirstat hidden files' - and I tried treesize instead.

Treesize showed a folder c:\system recovery\ which was about 120gb in total - it does not show as a hidden file in c:

If i delete all restore points, the folder is unaffected, it may be Dell related.

I then found a CMD tool and registry file to add a 'take ownership' context menu - it's running now to grant control over the system recovery folder files recursively.

Then I will delete them all...