For the past week I’ve been struggling with my c: filling up quickly despite me having cleared the temporary files and even moved my ost file to a different drive… I noticed that Onedrive4B was refusing to complete its sync and then it occurred to me that probably it was the culprit… Every time i freed up some space I found the pending file count to reduce and then stall while the OS started complaining of low space in c:
After googling and a few hacks later I found the main culprit. Onedrive4B cache cannot be moved to other location other than its pre-designated location! That’s IMO a capability there in pre 14 versions but now not supported!
Anyway I went to the C:\Users\<username>\AppData\Local\Microsoft\Office\16.0 folder and to my horror saw multiple OfficeFileCachexxx.old folders with each occupying GBs of space! I just deleted all the *.old folders and my c drive gained plenty of spare GBs it started off with! Now problem partially solved… Onedrive now syncs and maintains only one copy of cache and leaves the rest of space in c: alone… But why doesn’t microsoft not allow the cache to be moved to more spacious locations? I wonder!