When I run sfc /scannow ,it tells me to insert my windows xp pro cd
I do not have w xp pro I have windows xp home edition sp2

I can't get past that and have to re-boot to get it off.
I did insert my windows xp home edition cd but that didn't help anything, it still does that.
This computer is only 3 months old and was built for me by a guy who has a small business in my town.

If you MEAN you have Home Edition installed... then apparantly not. One way to find out is to look in the desktop backgrounds and look at the "Windows XP" background. If it's green you have Home, if it's blue you have Pro

Or if you mean you have the Home CD only and you are trying to use it on a Pro version... you'll need to ask that guy for the right CD.When I go to 'my computer' and then 'system information it says:
Windows xp home edition
version 2002
sp2
INTEL (R)
Pentium (R)
D cpu 2.66 GHz
2.67 GHz
o.99 GB Ram

When I called him about this he said I had the XP Home edtition and just stick the cd in and that would fix it, as I said it didn't it is the cd he gave me with the computer.

I found this info on my computer:
OS Name      Microsoft Windows XP Home Edition
Version      5.1.2600 Service Pack 2 Build 2600
OS Manufacturer      Microsoft Corporation
System Name
System Manufacturer      INTEL_
System Model      D945GTP_
System Type      X86-based PC
Processor      x86 Family 15 Model 4 STEPPING 7 GenuineIntel ~2666 Mhz
Processor      x86 Family 15 Model 4 Stepping 7 GenuineIntel ~2666 Mhz
BIOS Version/Date      Intel Corp. NT94510J.86A.3239.2005.1205.1900, 12/5/2005
SMBIOS Version      2.3
Windows Directory      C:\WINDOWS
System Directory      C:\WINDOWS\system32
Boot Device      \Device\HarddiskVolume1
Locale      United States
Hardware Abstraction Layer      Version = "5.1.2600.2180 (xpsp_sp2_rtm.040803-2158)"
User Name      
Time Zone      Eastern Standard Time
Total Physical Memory      1,024.00 MB
Available Physical Memory      427.24 MB
Total Virtual Memory      2.00 GB
Available Virtual Memory      1.96 GB
Page File Space      1.63 GB
Page File      C:\pagefile.sysTry putting the i386 file from your XP CD onto your C:\ drive and altering the registry to point to it there, you can then run sfc/scannow without inserting the CD.

Step 1

You will need to get your XP CD and locate the folder called: I386

This is a major folder and should be one of the first you see, now copy this onto your hard drive into the system root. For most of you that is GOING to be C: so you should end up with a folder that looks like: C:I386

Step 2

Your computer needs to know that you now have the necessary files on your PC. This is done by editing the registry. Here's how: (type regedit in the Run box on the start menu)

By navigating to:HKEY_LOCAL_MACHINESOFTWAREMicrosoftWind owsCurrentVersionSetup

You will see various entries here on the right hand side.

The one we want is called: SourcePath

It probably has an entry pointing to your CD-ROM drive,(usually D:) and that is why it is asking for the XP CD. All we need to do is change it to: C: Now, double click the SourcePatch setting and a new box will pop up allowing you to make the change to the drive letter of your root drive, probably C:

Now RESTART your computer and try sfc /scannow again!
Thank you so much, I printed your instructions off and will try them.