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Windows says there is no OS on my hard drive

416 Views 14 Replies 6 Participants Last post by  2tired
Its a 640gb WD hard drive that Ive had for about 4 1/2 years

Last night the casing for my outlet broke and as I was moving a storage bin, the computer shut down

I turned the computer on and everything turned on fine but windows refuses to boot up. The hard drive turns on and its recognized in the bios but it just gets stuck on that black screen with the windows logo (actually dont even get the logo) .

I ran the start up repair and it stated no OS was found. Has my hdd gone bad? it can be seen in the bios, so im hoping thats not the case

windows 7 is my OS

thanks for any help
1 - 15 of 15 Posts
i think the hard drive is bad. check for bad sectors. make sure that the sata cable is plugged in all the way. hard drives are very sensitive to drops
Quote:
Originally Posted by epkoc View Post

i think the hard drive is bad. check for bad sectors. make sure that the sata cable is plugged in all the way. hard drives are very sensitive to drops
Never dropped it. I can feel it vibrating and its in the bios, but can it still go bad? I find it od that I didnt get any warning signals and there was no issue throughout the day (in fact the pc had been on for about 12 hrs up to that point). Once the PC powered down windows wouldnt boot up. And everything is plugged in
backup your data and do a clean install of windows. if similar problem occur again it means that your hard drive is bad. hard drive is one of theese components that will fail. sometimes it takes 2 year and sometimes 5 or 10. it is showing up in bios because the logical board still works and it vibrates because the platters are spinning but that doent mean that it works. many people dont get any warning signal before their hard drive fails. download hdd regenerator and check for bad sectors. it also offers ability to repair some bad sectors
tried safe mode?
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Quote:
Originally Posted by ladcrooks View Post

tried safe mode?
redface.gif
no OS is detected so how can he enter safe mode?
Quote:
Originally Posted by epkoc View Post

backup your data and do a clean install of windows. if similar problem occur again it means that your hard drive is bad. hard drive is one of theese components that will fail. sometimes it takes 2 year and sometimes 5 or 10. it is showing up in bios because the logical board still works and it vibrates because the platters are spinning but that doent mean that it works. many people dont get any warning signal before their hard drive fails. download hdd regenerator and check for bad sectors. it also offers ability to repair some bad sectors
OK, thanks. thought id at least get beeps or something... can i put the hdd in a dock and back the data up?
Quote:
Originally Posted by epkoc View Post

no OS is detected so how can he enter safe mode?
on my board it = F8

and it becomes before win logo
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Quote:
Originally Posted by ladcrooks View Post

on my board it = F8

and it becomes before win logo
biggrin.gif
safe mode is part of windows and he has no OS
F8 is hotkey for safe mode for win 7 and below, it has nothing to do with motherboard
Sounds like the MBR (master boot record) may have been corrupted.

Another link to try if Sean's link doesn't help...
http://support.microsoft.com/kb/927392
Quote:
Originally Posted by epkoc View Post

safe mode is part of windows and he has no OS
F8 is hotkey for safe mode for win 7 and below, it has nothing to do with motherboard
yes! i meant keyboard and it comes before the win logo! I was trying to answer fool proof for OP and hence the
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If you have more than one hard drive, ensure that the proper hard drive is set to boot. If that is not the cause, boot into repair and run bootrec.exe. Attempt to fix the MBR or rebuild the BCD if needed. I would suggest going through diskpart and ensuring that the proper partition is set as active, but I doubt that is the problem.

Are you seeing any messages? How did you access the repair?
Quote:
Originally Posted by ladcrooks View Post

yes! i meant keyboard and it comes before the win logo! I was trying to answer fool proof for OP and hence the
biggrin.gif
I am not following since the OP is described that there is no Windows loading screen or OS detected when the repair is run. F8 is used to bring up the advanced boot menu. If the machine fails to detect that the hard drive contains an operating system, pressing F8 will not help the OP resolve the issue. No disrespect as I might be wrong since the details are left out.
Quote:
Originally Posted by monoLab View Post

Sounds like the MBR (master boot record) may have been corrupted.

Another link to try if Sean's link doesn't help...
http://support.microsoft.com/kb/927392
nice, oh and i forgot to say...

you may have to mark the drive's OS partition as active before using bootrec.

In CMD do this
diskpart
list disk
select disk #
list part
select part #
(OS partition)
active

then do bootrec.
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Quote:
Originally Posted by FusionFX View Post

If you have more than one hard drive, ensure that the proper hard drive is set to boot. If that is not the cause, boot into repair and run bootrec.exe. Attempt to fix the MBR or rebuild the BCD if needed. I would suggest going through diskpart and ensuring that the proper partition is set as active, but I doubt that is the problem.

Are you seeing any messages? How did you access the repair?
I am not following since the OP is described that there is no Windows loading screen or OS detected when the repair is run. F8 is used to bring up the advanced boot menu. If the machine fails to detect that the hard drive contains an operating system, pressing F8 will not help the OP resolve the issue. No disrespect as I might be wrong since the details are left out.
Currently I only have one drive and yea its set to boot. Everything was working fine until me moving stuff caused the PC to shut down. I put in a diff hdd and everythings working fine, so it has to be the drive

what happened was once I booted up the PC, I got an option for startup repair and start windows normally. I always get the start windows normally option but the start up repair is new. I clicked the repair option to see what they said, and at the bottom they said the solution was that there is no OS detected

thanks a bunch for the help guys. Can anyone tell me if I can still back the data up using an ext. dock? think its time for ssd soon
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