Windows 7 install computer shutdown during install

i cannot do anything with my laptop it restarted unexpectedly during install and i tried a windows 8 install but no hdd found what can i do?

Where did you get Win7? Did you burn the disk yourself? How is it being activated?

Back up your files, unplug all other HD's and peripherals,

Boot into BIOS setup to enable Legacy BIOS if present. Next check BIOS Boot order for an EFI Boot Disk: remove it, set DVD drive first to boot, HD second. Then set SATA controller to AHCI. Save changes and Exit.

Then boot into installer DVD or flash stick burned or written using tool and latest ISO for your licensed here.

At first installer screen Press Shift + F10 to open a Command Box, type:

DISKPART
LIST DISK
SEL DIS 0 (after confirming Windows 7 target HD #)
CLEAN
CREATE PARTITION PRIMARY SIZE=102400 (for 100gb partition, adjust as desired)
FORMAT FS=NTFS LABEL="WINDOWS 7"
ACTIVE
EXIT
EXIT

Next click Install Now to Clean Install Windows 7 to the partition you created. If it fails then report back at which step and the verbatim error message.

In addition read over these steps to understand the tools and methods which work best to get and maintain a perfect Clean Reinstall - Factory OEM Windows 7. The steps are the same for retail.

@greg thank you for your help i am going to try all that asap but i had a usb device before that was a bootable one and i saved files to pc and put on another usb and started install that way without bootable usb and i managed to somehow take the corruptes win 7 install off and now i got missing os but im still going to try it with the original boot device would you mind adding me on skype? Just incase i get some confusion and can contact you for further assistance? Skype name is: Pacmeezy420

Please keep the help in the thread so others can help you, too, and others can learn. This is how it works.

Please also use shorter complete sentences which convey one complete thought each.

Will do. I will start your process now will get back to you with progress.

It was a sucessful install but now i try setting up internet and it says windows did not detect any networking hardware. Guessing drivers not installed

Get the network drivers from the manu. website and put on a flashdrive. Install on target pc. You can then run windows update.

Apparently you didn't bother to read Clean Reinstall - Factory OEM Windows 7
as suggested because you would have had the wireless driver on a stick or CD ready to install in case it wasn't provided by installer.

I did. Didnt completly understand it

Then ask back any questions to insure you understand what you are doing.

Did you install the wireless adapter and get online to install all Important and Optional Windows Updates after enabling Automatically get recommended drivers and updates for your hardware?