Disk Cleanup App Windows 10 (Compress your OS Drive) 20.8GB - can I clean up, delete? or is it important?

[dm143656]

So, I was wondering where 20Gigs of my SSD space gone to, and I found out when I checked on the disk cleanup app on windows 10 that 20.8GB of my space has been taken up by a file called 'Compress your OS drive'.

You can find that,

Search Bar > Disk Cleanup > Open and select Drive C > Scroll a bit down and you will see a large file.

So, my question is can I delete it, or check on the clean up box and press ok?

 

[hang-the-9]

That is not a standard thing on all systems. Did you actually use some compression software at some point in the system? Where does this file live on the drive?

 

[mdd1963]

I get the impression this is not data to be cleaned/deleted , but merely a suggested amount of what space that MIGHT be saved *if* the drive were compressed instead...

I'd not bother with it....

 

[USAFRet]

You can find that,

Search Bar > Disk Cleanup > Open and select Drive C > Scroll a bit down and you will see a large file.

Not on any of my Win 10 systems, either Home or Pro.

 

[mdd1963]

I see what is being discussed on my Win10 Pro install (although mine is a HyperV converted VM, as applies when HyperV is seemingly 'added' to a Win10 Pro), in fact it was 75 GB in size....and listed right where the OP mentioned, right click C drive, 'properties' /disk cleanup, 4th or 5th option down as 'Compress your OS drive'

But, I think this is misleading by showing it in 'disk cleanup', implying it is something that can be deleted like trash, cookies, etc...