Windows 7 Won't Boot - No Operating System Shown
Sep 16, 2011Message won't boot - boot with Win7 DVD - go to repair - no operating system shown - do repair - reboot - same result.
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Windows 7 Won't Boot - No Operating System Listed / System Partition Not Valid
Oct 19, 2011Suddenly my Win 7 Home Premium x64 will not boot. The system starts, POSTs then loads the DVD driver, then the screen goes black (not blank but "lit up" black if that makes sense). Then nothing. If I use Hiren's boot cd I can boot up using the "boot from HDD" option fine and Windows operates normally. System restore to a previous configuration made no difference to the original problem. I cannot boot into Safe Mode. F8 just offers me boot order options.
- Running the Windows 7 DVD I find: "No operating system is listed on the Repair Windows option."
- Running Startup Repair finds the following error: "the partition table does not have a valid system partition" which it claims to have repaired, but the error remains and Windows will still not boot.
I followed this advice:
Boot 7 dvd to system recovery options command prompt. Type: Diskpart
list vol (find the vol letter e.g C or partition number e.g. 1 for the system partition )
Sel vol C ( or sel vol 1, obviously use the correct letter or number)
act exi
My system partition was easily identified and listed as healthy so I selected it and made it active. The problem still remains exactly the same. My system is self built just over a year ago, to my knowledge has been running fine, without any hardware issues. I'm prepared to do a clean install if that's what it takes but if there is a way to fix the partition problem without that I'd like to explore it first.
Windows 7 Won't Boot No Operating System
Sep 16, 2011Message won't boot - boot with Win7 DVD - go to repair - no operating system shown - do repair - reboot - same result
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Specs :
mobo : Gigabyte GA-890FXA-UD5
cpu: phenom ii x6 1090t
gpu : radeon hd 6950
hard drive : western digital black caviar 1TB
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System Info Utility version 1.0.0.2
OS Version: Microsoft Windows 7 Professional, Service Pack 1, 64 bit
Processor: Intel(R) Core(TM) i7 CPU 930 @ 2.80GHz, Intel64 Family 6 Model 26 Stepping 5
Processor Count: 8
RAM: 12286 Mb
Graphics Card: ATI Radeon HD 5800 Series, 1024 Mb
Hard Drives: C: Total - 953866 MB, Free - 911718 MB; D: Total - 152627 MB, Free - 133648 MB; E: Total - 953765 MB, Free - 888220 MB; H: Total - 953866 MB, Free - 935786 MB;
Motherboard: Gigabyte Technology Co., Ltd., X58A-UD7
Antivirus: Microsoft Security Essentials, Disabled
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Problem Signature 01: 6.1.7600.16385
Problem Signature 02: 6.1.7600.16385
Problem Signature 03: unknown
Problem Signature 04: 21200924
Problem Signature 05: Autofailover
Problem Signature 06: 3
Problem Signature 07: No Root Cause
OS Version: 6.1.7600.2.0.0.256.1
Locale ID: 1033
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