не могу поставить винду7-раньше стояла-начинается загрузка с диска потом комп вырубается и снова начинает ся загрузка

Можно еще диск извлечь до запуска ОСи

How do I start the computer using Last Known Good Configuration? Follow these steps: Remove all floppy disks, CDs, and DVDs from your computer, and then restart your computer by clicking the Start button Picture of Start button, clicking the arrow next to the Shut Down button Picture of Shut Down button, and then clicking Restart. Do one of the following: If your computer has a single operating system installed, press and hold the F8 key as your computer restarts. You need to press F8 before the Windows logo appears. If the Windows logo appears, you'll need to try again by shutting down and restarting your computer. If your computer has more than one operating system, use the arrow keys to highlight the operating system you want to start, and then press F8. On the Advanced Boot Options screen, use the arrow keys to highlight Last Known Good Configuration (advanced), and then press Enter. If your computer has more than one operating s