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Author Topic: Help please HP DV7 no boot device  (Read 4328 times)
lasernat
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« on: May 14, 2016, 04:17:06 PM »

My dad gave me his HP DV7 I replaced the mainboard, upon boot up it stated no boot device. Not sure what is the cause. OS is windows 7 home premium. I ran diskpatch to repair partition table twice (by mistake once) but no change so I undid the changes. I refreshed boot code now I get error loading operating system. I could see the directories there. There should also be a hidden partition to reload the system. I think there should be 1 or two more partitions as well. Not sure what to do from here. Please help.
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Tom
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« Reply #1 on: May 15, 2016, 03:16:58 PM »

Please use the latest version of DiskPatch, get it from our download page.
Then do this and only this:
http://www.diydatarecovery.nl/dp_manual/guide_supportanalysis.htm
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lasernat
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« Reply #2 on: May 15, 2016, 06:27:00 PM »

Here is the files
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Tom
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« Reply #3 on: May 16, 2016, 11:45:56 AM »

From the list I'd say the most likely candidates are these:

SEQ_|____TYPE_|______START_|_____LENGTH_|________END_|__PL_|___R_|___A
001 | ...NTFS | ......2048 | .976766976 | .976769023 | PRI | ..A | ..V
005 | ...NTFS | ...1615872 | .974440441 | .976056312 | PRI | ..B | ..V


Have you tried these in previous repair sessions?
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lasernat
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« Reply #4 on: May 16, 2016, 02:44:58 PM »

No have not tried anything other than what I already stated
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lasernat
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« Reply #5 on: May 16, 2016, 05:22:58 PM »

How do I go about it? ty
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Joep
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« Reply #6 on: May 16, 2016, 09:05:18 PM »

Hi,

Why assume anything wrong with the MBR etc.? Did the disk boot before the hardware changes? There's a protective MBR in place, wasn't this simply a GPT partition table?

Doesn't look like Windows 7 MBR bootcode, does it?

GPT partition table doesn't require an active partition, did you set it?

At this point I would suggest to go back to the situation as it was before you used DiskPatch. Check the disk in the system setup. Then use Windows utilities to trouble shoot boot problems: boot the Windows DVD, and select repair your PC, startup repair: it will try to detect and fix issues preventing you from booting.
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Kind regards,
Joep
lasernat
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Posts: 12


« Reply #7 on: May 16, 2016, 10:54:48 PM »

It originally stated to boot record found/ bootable disk. The system didnt boot before the mb was changed it gave a beep code for corrupt bios. Whether the disk was bootable before that I assume it was but dont know for sure. I dont know anything about the laptop prior to my dad giving it to me because it didn't work. I dont know what a windows 7 mbr looks like and now that you mention it yes I made the partition active. I can not get a restore disk to work and I can not get system recovery to work. If I could I would just reload the system from scratch. So is there nothing that can be done with diskpatch to fix the system?
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lasernat
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« Reply #8 on: May 16, 2016, 10:56:59 PM »

It originally stated no boot record found/ bootable disk. (previous message)
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Tom
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« Reply #9 on: May 17, 2016, 09:51:33 AM »

IF all you want to do is a clean re-install and IF the disk is detected normally in the PC it's quite simple: just delete the MBR using DiskPatch and you're good to go. Obviously only do this if you have installation disks (either restore or fresh) and have nothing on the disk that needs saving.

Also, the PC in general has to function normally, something that may not be the case; you mention restore and/or repair doesn't work. I can't tell from here why that would be but if that is a hardware problem a re-install will fail.
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