How to solve Missing Operation System

[bikki]

NEED COMPUTER HARDWARE knowledge to solve the problem:

Dear all, does anybody tell me each steps of process that how to format the computer with USB or DVD. I am suffering from this problem. I am trying to fix it by different way (safemood, repair window, use command,..) but no progress at all. I use the window 7 files through USB. I tried many time from different dimensions based on my raw-mind using different reference from internet. BUT NO PROGRESS. please guide me if somebody know how to solve it. thank you.

[glynder]

If you like Windows XP and prefer to use this as the operating system, you can ignore all this complicated mess we describe here, and just install a new copy. If you want to have a multi-boot scenario, or dual boot with XP and other systems that are installed on the same machine, the same applies. At this point, remove the boot-from media sources that are able to have and use the Windows XP installation disk or any 3rd-party software that has the ability to partition and format. Configuring your HDD to whatever you do. If you want XP and Vista, and / or Windows 7 on the hard drive itself, you need a separate partition for each system. Only the rules are very important here: Install the old system before, and before the new system. Follow this and you'll be fine. Do not follow this, and you get what you have now.