Software >> OS >> Windows >> 8 >> How to free space in c:\windows\softwaredistribution

• Start>Run
• type cmd and press enter
• type net stop wuauserv and press enter
• type rename c:\windows\SoftwareDistribution softwaredistribution.oldand press enter
• type net start wuauserv and press enter
• type exit and press enter

References

[1] http://answers.microsoft.com/en-us/windows/forum/windows_xp-files/is-it-safe-to-delete-files-under/8d98d924-b0b1-4f2b-bb4b-13f38126c588