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August 2nd, 2015 17:00

A required drive partition is missing / inaccessible boot device?? Inspiron 7520

I have a DELL Inspiron 7520(service tag 4fb1gs1).  Originaly supplied with win7(sp1) home premium 64bit, Intel core i7-3612 QM @ 2.10 ghz, 8gb ram.  I can't pull up any other specs due to my current laptops lack of operation.

The issues--

I decided to take advantage of the win10 upgrade.  Microsofts tool checked and approved my device for the upgrade.  The initial upgrade worked and my laptop was now win10 home.  After a check to see if my Win10 has been correctly key activated, I decided to do a pc reset (clear files, apps and settings) via MS tool in settings.  After finishing reset and rebooting to desktop I get the error "inaccessible boot device" and than proceeds to go in a loop of restarts.

Figured I would try now a clean install via USB boot using the MS creation tool.  Using the repair and fresh install options and after completing some intial start settings I get the error "unable to reset your pc. A required drive partition is missing"

So I am now officially stuck with no pc.  I searched for hours online for an answer to this problem to no avail.  Even this message was done frustratingly through a cell phone.  

I am the family resident service tech and I assumed I was tech savy.  Before I swallow my pride and goto geeksquad......

Is my laptop bricked?

Anyone know of a solution?

I will be checking my cell phone for any replies......

August 3rd, 2015 19:00

Well low and behold, I decided to give the install one more chance and it worked.  I really have no clue as to why that happened.  But I am up and running.

Thank you for the assist!

9 Legend

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87.5K Posts

August 2nd, 2015 17:00

Start with a hard drive diagnostic - F12 at powerup.  Choose Dell diagnostics, and run an extended test on the hard drive.

August 2nd, 2015 18:00

I am currently using Dell ePSA preboot system assessment.  Build 4220.10 UEFI ROM.

All devices passed intial test.  

After looking at the configuration tag I have - drive 0 - ata, sata 1tb.  And  - drive 1 SSD 32gb.   Also it showed  boot path-MBR of drive 0.   File system-NTFS.

I am now running a thorough test and seem to be stuck or lagging at 10% on drive 0 for 40 min.  Its not frozen I believe due to thermostats temp keeps changing in system health tab.

Not sure if I should abort and start over?

9 Legend

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87.5K Posts

August 2nd, 2015 19:00

See what happens, but it sounds like your cache drive is OK, but your hard drive has developed bad sectors - meaning it needs to be replaced.

August 2nd, 2015 20:00

Thorough Test is still going, just really slow.  I'm at 50% now.  I will post final results when done.  Most likely by tomm morning.

August 2nd, 2015 20:00

Thorough/long test has completed....all devices have passed test.

Any ideas on where to go next?

If this a partition issue, cant they all be wiped and start fresh?

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