Dell Dimension E510 Computer will not Boot Up

hey,

probably the boot sector failed.

is it windows 7 or another?

is the POST ok from the computer ( the power on self test) if you got an error : post the error , so we can see what the problem is.

you can also try ( after the DELL logo) to press F12, in the menu you choose diagnostics, press enter.

post the screen here after it's done.

other sollution : try to boot with a windows live cd. ( if you don't have one, search the internet on windows 7 iso ( if it is a windows 7 that you have) . Download the ISO en burn it on a bootable DVD.

reboot with the dvd. ( Don't forget to change the boot priority in the UEFI or BIOS)

after that try to do system recovery. ( You'll loose all data after the last backup.)

I think it will be a bad hard disk.

if it is : we can help you guide trough a clean install of windows and i and other mebers of this comunity can explain how to get your data back of the broken hard dsik.

good luck and let us know.

what i forgot to say :

if you can't do a system recovery you can choose to start with command promt.

you can enter following commands , restart after every command is finished.

1.chkdsk /f /r

2.bootrec /fixboot

3.bootrec /fixmbr

4.bootrec /rebuilbcd

good luck