A couple days after I got my Dell Venue 8 Pro, my free space on my C: went dwon almost 3 gigs on its own. I did not install anything. I discovered what was causing it.I was able tof ree up the missing storage space by deleting the MS update downloads files that reside in this directory: C:\Windows\SoftwareDistribution\Download



You have to first take ownership of the folder, then you can delete the files and folders within this Download folder.



I read that these folders should be auto deleted after a few days, but this was not happening on my Dell. I helped it out by deleting them and I now have my space back. Some may balk at this procedure, but It's been over a week since I did this will no ill effects. I've researched it and many say it is ok to do this. Combining this with disableing hybernation (1.5 gig) and creating a backup (5 gigs) I have added 9.5 gigs of storage back to my C:

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