Windows updates -- recovering disk space

[Dave-UK]

My results were similar to yours:

BEFORE: WINSXS = 11,250 MB, free space = 31,912 MB
AFTER: WINSXS = 6,538 MB, free space = 35,455 MB

I would feel better about that, except:

WINSXS shrank by 4.7 GB, but free space increased by only 3.6 GB.
Sigh.

Any idea where the extra gigabyte-plus disappeared to? It's not in
the Recycle Bin, which I emptied before running CLEANMGR and which is
still empty afterward.

Did you happen to check size of your Windows folder before he
cleanup? I didn't think to, and now I can't. Since you said 11.7 GB
I'm guessing you mean %WINDIR% and all subfolders. Mine is 14,301
MB, but I don't know what it was before.

Unfortunately I didn't record the size of the Windows folder before doing the cleanup.
When I said the Windows folder I meant C:\Windows and its subfolders.
You can gain another gigabyte or so of disk space if you don't use hibernation.
Windows creates a hidden file, C:\hyberfil.sys, even if you don't use that feature.

To delete hiberfil.sys run this in an elevated command prompt:

powercfg.exe -h off

Mine was around 1.2 G/B I think.

 

[Stan Brown]

You can gain another gigabyte or so of disk space if you don't use
hibernation. Windows creates a hidden file, C:\hyberfil.sys, even
if you don't use that feature.

Mine is 3 GB, but I don't begrudge it because at least it has an
obvious purpose, like pagefile.sys. (I would feel differently if I
didn't use hibernation, but I use it all the time.)