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Discussion Starter #1
HELP !!!
I have an Acer desktop running Windows 7 SP1. When I try to start it up I get the Windows Error Recovery screen – Windows failed to start.

I launched the recovery option it runs for about 20 mins with the message Startup Repair cannot repair the computer automatically.

Problem Event Name: StartupRepairOffline
Problem Signature 01: 6.1.7600.16385
Problem Signature 02: 6.1.7600.16385
Problem Signature 03: unknown
Problem Signature 04: 382
Problem Signature 05: AutoFailover
Problem Signature 06: 1
Problem Signature 07: 0x7f
OS Version: 6.1.7600.2.0.0.256.1
Locale ID: 1033

Startup Repair Diagnosis and Repair Log displays the following details:
Last successful boot time: 7/29/2016 09:50:09 PM(GMT)
Number of repair attempts: 1

Session details

System Disk = \Device\Harddisk0
Windows directory = C\Windows
AutoChk Run = 0
Number of root causes = 1

Test Performed:
Name: Check for updates
Result: Completed successfully. Error code = 0x0
Time taken = 0ms

Test Performed:
Name: System disk test
Result: Completed successfully. Error code = 0x0
Time taken = 0ms

Test Performed:
Name: Disk failure diagnosis
Result: Completed successfully. Error code = 0x0
Time taken = 78 ms

Test Performed:
Name: Disk metadata test
Result: Completed successfully. Error code = 0x0
Time taken = 63 ms

Test Performed:
Name: Volume content check
Result: Completed successfully. Error code = 0x0
Time taken 484 ms

Test Performed:
Name: Boot manager diagnosis
Result: Completed successfully. Error code = 0x0
Time taken = 0ms


Test Performed:
Name: Target OS test
Result: Completed successfully. Error code = 0x0
Time taken = 93 ms

Test Performed:
Name: System boot log diagnosis
Result: Completed successfully. Error code = 0x0
Time taken = 16 ms

Test Performed:
Name: Event log diagnosis
Result: Completed successfully. Error code = 0x0
Time taken = 78 ms

Test Performed:
Name: Boot status test
Result: Completed successfully. Error code = 0x0
Time taken = 358 ms


Test Performed:
Name: Registry hives test
Result: Completed successfully. Error code = 0x0
Time taken = 2450 ms


Test Performed:
Name: Setup state check
Result: Completed successfully. Error code = 0x0
Time taken = 32 ms

Test Performed:
Name: Windows boot log diagnosis
Result: Completed successfully. Error code = 0x0
Time taken = 0 ms


Test Performed:
Name: Bugcheck analysis
Result: Completed successfully. Error code = 0x0
Time taken = 702 ms

Root cause found:
Unknown Bugcheck: Bugcheck 7f. Parameters = 0xd, 0x0, 0x0, 0x0

Repair action: System files integrity check and repair
Result: Failed. Error Code = 0x490
Time Taken = 600152
------------------------------------------

I have tried it a number of times. I have seen two other errors during this:
BSOD STOP 0X0000007F and I was able to get into SAFE MODE a couple of time with one showing me FAILURE CONFIGURING WINDOWS UPDATES. REVERTING CHANGES. First time it just shutdown the system. I went back into Safe Mode and the reverting changes ran for about 30 mins and started Safe mode .

I read a number of recovery attempts but all seem a little different and I am not sure what recovery attempt I should try without cause more problems.


I would appreciate some help, please.
 

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Discussion Starter #3
No because the don’t ship PC with installation CD anymore. I will look to see if I can find one. You think it will be better than what the PC is offering for Startup Repair???
 

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If you can get back into "Repair Your Computer" by rejecting startup repair then choose "CMD" and then typing into the box that opens "Chkdsk /r" with space and without quotes then it will ask it will ask you to accept or reject (Y or N) to allow it to run on restart and or mount the drive bot answer "Y" and hit enter on the keyboard.
 

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Discussion Starter #5
Did the CHKDSK /r got the following message:

Cannot lock current drive. Windows cannot run disk checking on this volume because it is in write protected.
 

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Found a Windows 7 install disk. Ran the startup repair but it could not fix the problem.

I then went to CMD prompt and ran the DSKCHK /r and it ran. It finished. Not sure what to look for in the totals - 0 KB in bad sectors. But there was one message at the bottom – Failed to transfer logged messages to the event log with status 50???

Did a system restart and got the same BSOD Stop 0x0000007f.
 

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it should have asked to shutdown to mount drive first and you answer "Y" and hit enter on keyboard and then agree to shutdown and run on start "Y".
 

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Rich I 'am wondering if this Bsod is possibly ram related as it could screw up the boot process.
 

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Discussion Starter #9
It did ask me a Y/N question - Would you like to force the dismount of hte volume? I replied Y and it ran. When finished the CMD just sat there. I closed the CMD screen and hit the RESTART button on the System Recovery Options window. When it restarted I got the BSOD.
 

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Discussion Starter #10
I did try running the Windows Diagnostic tool from the Startup repair option page.

At the bottom it says Windows will restart the computer Automatically. Test results will be displayed again after you log on. Unfortunately the next log on is usually a BSOD so I never see the results.

But from what I could see on the screen to the end the STATUS indicated No problems have been detected yet.
 

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Sorry but a Bsod is a sign of something not being right.
 

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Discussion Starter #12
I guess the big question is how do I identify what is not right and fix it or remove it??? My Safe mode is now hanging on - on loaded: \windows\system32\drivers\CLASSPNP.sys - so now I can't even get into Safe Mode.
 

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Well you have seen my initial thought on it possibly being ram, lets see if Rich has another.
 

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Discussion Starter #16
I'm guess the memory test from the Repair screen was a waste??? I am now running the memtest86 test. It was good that I had to boot into the test. Hopefully it does not just restart the PC when finished. Any idea how long it will run for 3GB of memory???
 

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Let it run a minimum of 7 passes though it would be better to run it on 1 stick at a time then alternate the slots then the sticks and rerun, it lets you see if it is the ram or the slot on the board which is causing an issue
 

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You should run 3 or so full tests but you could do the first 8 passes which is one test and then do a full test on each stick separately. And yes the Windows memory test is not very useful.
 

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Discussion Starter #19
I created USB boot driver for Mentest86. Plugged it in, booted the PC up and it basically took off. I let it run overnight - 16.41 hours later - looks like 17 PASS and 0 ERROR. I'm guessing that's enough time??? Have already ran the DSKCHK a number of times without errors. So how do we look at the other 2% of the BSOD issues???
 

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