I have 2008 R2 server which has a 40Gb C:\ partition that has just dipped below 20% free - so around 7.8Gb free.
At what point would one get worried about the lack of disk space?
The server is used for our finance software.
The winsxs folder is currently over 9Gb and I've seen some online docs to suggest it's safe to run the following command to reclaim some space:
dism.exe /online /cleanup-image /spsuperseded
Any comments please.