well it only runs XP due to driver availability ...got a windows XP install disk?
see if this works:
1# Restart the computer.
2# As the computer restarts, begin pressing the F8 key after the Gateway BIOS logo appears until the Windows Advanced Options Menu screen appears.
3# On the Windows Advanced Options Menu screen, use the arrow keys to select Safe Mode with Command Prompt, and then press the ENTER key.
4# On the Please select the operating system to start screen, select the Microsoft Windows XP operating system, and then press ENTER.
5# At the login screen, log on as the administrator or a user who has administrator rights.
6# At the command prompt, type: c:\windows\system32\restore\rstrui.exe. Press ENTER.
Note: If Windows has not been reinstalled, the folder is c:\winnt\system32\restore\rstrui.exe.
7# The graphical user interface (GUI)-based System Restore utility is launched. Follow the instructions on the screen to begin restoring your computer to a previous, functional state.