Are you able to do anything such as going to the user accounts within control panel and getting a list of the users and their rights levels? Have you recently installed any new softwares or changed any configurations on the computer? This may be an anti-virus or anti-spyware program that's gone crazy. Also try right-clicking on the executable you are trying to use and makre sure that it's not being blocked by windows XP. If it is there will be a button within the bottom left hand corner of the advance section that you can press to unblock the program.
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by: vallisPosted on 2007-08-19 at 13:45:09ID: 19726866
You probably need to replace your USB keyboard with a PS2 keyboard to access it before Windows boots. Many motherboards won't recognise a USB k/b properly in pre Windows environment.
ech.com/XP repairinst all.htm
Then:
Try Last Known Good Configuration:
Reboot your computer while holding down the F8 Key. At the Advanced Options Menu select Last Known Good Configuration.
If that doesn't work:
Reboot your computer while holding down the F8 Key. At the Advanced Options Menu select the option for Safe Mode with Command Prompt and press Enter.
Type "sfc /scannow" without the quotes. There's a space before the /.
Press Enter key.
Have your Windows CD ready to insert if prompted when repair is necessary.
If SFC doesn't fix the problem:
Repair installation of Windows.
This leaves all your programs and data intact while reinstalling Windows.
1. Boot the computer from your XP CD (if this won't boot, you may need to change the order of boot devices in BIOS setup).
2 Eventually you will see the "Welcome To Setup" screen. Press the Enter key to start Windows Setup.
3. Be careful NOT to choose R, which is "To repair a Windows XP installation using the Recovery Console".
4. Accept the License Agreement.
5. Windows setup will search for existing Windows installations.
6. Select the XP installation you want to repair (there is usually only one) and now press R to start the repair.
More complete instructions on how to do this, complete with pictures, are here:
http://www.michaelstevenst