Have you started to notice that C drive is getting a little full or do you just want to have a spring clean, well you may not realise it but when you installed Service Pack 1 or Service Pack 2 onto your Windows Vista or Windows 2008 Server that Microsoft very sensibly backed up all the old system file before replacing them with new ones.
Assuming that you have had Service Pack 1 or Service Pack 2 installed for sometime without issue it may be good to know that you might be able to reclaim some disk space by dumping these obsolete system files.
Simply launch an elevated Command Prompt by right clicking “Command Prompt” and selecting “Run as administrator”. Once you are in a command prompt simply paste in the following according to the Service Pack you are currently running:
Service Pack 1 you need to paste: VSP1CLN.EXE
Service Pack 2 you need to paste: Compcln.exe
Be patient with these commands they will need time to enumerate a large number of files and could take up to 60 minutes to complete. Once finished I would recommend a reboot.
With these commands we are telling the operating system to remove any of the superseded service pack files. If you do not have any files to remove it might be because someone else has already removed them or your computer/server may have already come with Service Pack 1 or Service Pack 2 pre-installed/integrated.