[Lsdmeasap]

That is a SP3 error, you said SP2.... What gives?

You could just do a repair install, which will leave all documents but will reinstall windows fully. So you will be closer to square one then what SFC gives you

Put the Repair Disk in and reboot and choose Boot from CD, then it will scan and find your windows installation. it will ask you if you want to install windows or do a repair install, choose R

As for the above error regardless of SP #'s it looks as if you are a guest or not a Admin of that PC, so you do not have the correct permissions

Best to try it again before doing the repair install, but this time actually login as THE ADMIN, Not a admin. There is 2 ways to do this >>>

Easiest >>>
Right click on ''Computer -> Manage -> Local Users and Groups -> Users
-> Rightclick Administrator -> Properties -> Uncheck ''account is disabled''.
Then reboot and you will see Administrator as a login Choice, choose that and then update


More advanced way >>>
1. From the Start menu, go to "All Programs", "Accessories"
2. Right-click on "Command Prompt" and choose "Open"
3. In the resulting Command window, run "regedit" (Or Windows Key + R And type Regedit)
4. Create the following value, type DWORD (32 bit), value 1
HKLM\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\SpecialAccounts\UserLis t\Administrator
5. From the command prompt enter: "net user Administrator /Active:yes"
6. Reboot, and now you can logon to the Administrator account