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Run System File Checker

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#1 jstarck


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Posted 16 January 2008 - 12:40 PM

Well it all started with a trojan Virus. AOL antivirus didn't catch it so I installed norton anti virus 2008 and got rid of virus. Started having problems with scansoft PDF Converter Professional. Tried to uninstall and received error 1721. I then went to Microsoft web site and received instructions to repair. I ran the register the windows installer service, Then ran system file checker. File checker has you purgecache. No problem but then it has you run sfc /scannow. This gets 90% of the way through and asks you to put in Windows XP Pro disk 2 for the needed DLL files. Here in lies the problem. I have a Compaq Presario SR2050NX that came with no back-up CD's. It has a partitioned hard drive that allows you to make recovery cd's. They don't work as XP pro disk 2. How do I repair my XP without starting over??? Help would be greatly appreciated!! Thank You! Jeff

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#2 garmanma


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Posted 16 January 2008 - 12:46 PM

Welcome to BC
SFC without xp disk

To fix the problem when you only have a restore CD you'll have to search for a folder on your hard drive (or on the restore CD) that's named "i386" (without the quotes). Once you find that, copy it to your hard drive at the root (C:\i386). Make sure that the directory is located at the root of your C: drive (C:\i386) - if not, then you'll need to change the path to the proper entry in the registry edit.

Then perform this registry edit to point SFC.EXE at it:
So, the first step is to backup your registry. The easy way to do this is to set a System Restore point ( http://www.microsoft.com/windowsxp/using/h...temrestore.mspx )

Next, go to Start...Run...and type in "regedit.exe" (without the quotes) and press enter. You'll see a folder-like view on the left, and entries on the right.

Navigate down the folder view on the left to: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\
CurrentVersion\Setup Just click on the + sign to expand the view of the next level - so, to start, you'll click on the + next to HKEY_LOCAL_MACHINE and look for the SOFTWARE entry.

Then you'll click on the + next to SOFTWARE and look for Microsoft, and so on (through the Windows and CurrentVersion keys) until you get to the Setup key. Then just click once on the Setup key.

Look in the right hand pane and double click on the entry that says "SourcePath".
In the box that pops up, type in "C:\" (without the quotes) and press Enter. Then close regedit and reboot your computer. SFC.EXE /SCANNOW should now run without problems for you.
If you're unable to find the i386 folder, it may be that it's on a hidden partition on your hard drive or that the restore CD has been created in a different way and you can't view the directories.

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