Try with pressing F8 whilst starting up.
recovery
Recovery ~tekno
Yes it is. Either through a DVD Repair, or to reinstall the OS.
There are various ways through which you can repair Windows XP. You can format your device and reinstall the software or use the system restore function in the operating system.
Reinstall it.
you need a bootable OS nstallation CD.
In a case if something happens with the operating system. If it does you can repair or even reinstall the OS using the recovery disk.
Yes, you can
Yes, it is possible. When you run the setup program, setup will ask you whether to install a fresh copy or to repair the existing copy of Windows.
You may have problems with the boot.ini file. If you can get to the BIOS then it may be possible to repair Windows. You can continually hit F8 on startup and load the computer in Safe Mode. If this doesn't work you may want to use a backup disc to repair or reinstall the operating system.
You need to repair or reinstall the operating system. Also it depends on file which is missing. Some are files are not important as others. Missing system files might indicate that you have a virus/trojan/malware on your computer.
Yes, you can if you have a copy of the CD saved somewhere on your hard drive.