How to clear the Diskspace in server

Hope u can have more free space by doing the below things.. u can have some GBs of space free..
1) delete or move the file from

C:\Documents and Settings\All Users\Application Data\Symantec\Cached Installs
2) Delete contents from C:\recycler ( To see this, u need to uncheck the hide protected OS files from tools-folder options - view)
3) Delete c:\temp and c:\windows\temp
4) MOve friles C:\WINDOWS\$hf_mig$ to D:\ drive or any available drive or delete the old files.
5) Move C:\WINDOWS\$NtUninstallKB*****$ to D:\ drive
6) Delete files C:\WINDOWS\PCHealth\ERRORREP\UserDumps and delete old logs in C:\WINDOWS\PCHealth\ERRORREP\QSIGNOFF
7) Move C:\WINDOWS\Installer files from D:\ drive
8) MOve C:\WINDOWS\system32\dllcache to D:\drive
9) Compress the old log files if any 

I have not tried  for Windows 7... but it will works for it I Guess...