Will Running Sfc's Put My Computer Right?

Will any of these help put my computer back the way it was I can't update windows, my MSN won't work, can't check my mail... I've posted several times... Just looking for the right answer...

Thanxz, Iron...

System File Checker (sfc)Scans and verifies the versions of all protected system files after you restart your computer.

Syntax
sfc [/scannow] [/scanonce] [/scanboot] [/revert] [/purgecache] [/cachesize=x]

Parameters
/scannow
Scans all protected system files immediately.
/scanonce
Scans all protected system files once.
/scanboot
Scans all protected system files every time the computer is restarted.
/revert
Returns the scan to its default operation.
/purgecache
Purges the Windows File Protection file cache and scans all protected system files immediately.
/cachesize=x
Sets the size, in MB, of the Windows File Protection file cache.
/?
Displays help at the command prompt.

 

Hi Ironcurtain,

Click Start > Run > type or copy&paste sfc /scannow >OK

Have your Windows CD handy as you will be prompted for it, if any system files are found missing/corrupt/outdated.

Regards,

Pieter