Hi,
My Windows 7 PC blue-screened this morning. I'm hoping someone here can help me fix it. My system had been working fine for months but I should mention the following:
- I do not have automatic updates running - I install them manually as the forced reboots annoy me. Regardless, I keep my PC fairly up to date;
- I have been out of my apartment for three weeks so the PC has not been used in that time;
- When I returned yesterday, one of the first things I did was plug in a USB hard drive a friend had lent me. Everything worked fine until I rebooted (from sleep mode) this morning. My guess is that the driver installed with this hard drive corrupted something.
I cannot run Windows 7 in any of the boot modes - Safe Mode, Safe Mode with command prompt, Low-resolution video, Last Known Good Configuration, Disable Driver Signature Enforcement, Debugging Mode etc. Every mode throws a blue screen. Stupidly, I had
not created a restore point so that option is out.
The blue-screen message is the following:
STOP: c000021a {Fatal System Error}
The Verification of a KnownDLL failed. system process terminated unexpectedly with a status of 0xc000012f (0x009b99a0 0x00000000).
The system has been shut down
Any help is really appreciated - this is not the best start to the new year!
What I've tried:
****************
- If I run Safe Mode with Command Prompt then CLASSPNP.SYS is the last driver to be displayed. The loading screen hangs for a few seconds and then I get the blue screen.
- A memory scan came back clean.
- From the installation disk, I ran chkdsk /r /f on my boot (C:) drive and it reported that "Windows has checked the file system and found no problems." There are no bad sectors on the drive.
- I then ran "sfc /scannow /offbootdir=c:\ /offwindir=c:\windows" which gives the following message: "Windows Resource Protection found corrupt files but was unable to fix some of them. Details are included in the CBS.Log windir\Logs\CBS\CBS.log. For example c:\Windows\Logs\CBS\CBS.log" I've posted the most recent section of that log below.
- When I tried the Startup Repair tool, it failed to fix the problem automatically. When I clicked View diagnostic and repair details, this message was included in the report:
A recent driver installation or upgrade may be preventing the system from starting.
Repair action: System files integrity check and repair
Result: Failed. Error code = 0x490"
6. Finally, I turned on boot logging to create the C:\Windows\ntblog.txt file. It looks fine for the first few entries and then looks like this:
Loaded driver \SystemRoot\system32\drivers\disk.sys
Loaded driver \SystemRoot\system32\drivers\CLASSPNP.SYS
Did not load driver @nettun.inf,%isatap.displayname%;Microsoft ISATAP Adapter
Did not load driver @nettun.inf,%isatap.displayname%;Microsoft ISATAP Adapter
Did not load driver @nettun.inf,%teredo.displayname%;Microsoft Teredo Tunneling Adapter
Did not load driver @hal.inf,%acpi_amd64.devicedesc%;ACPI x64-based PC
Did not load driver @netavpna.inf,%mp-agilevpn-dispname%;WAN Miniport (IKEv2)
Did not load driver @netrasa.inf,%mp-l2tp-dispname%;WAN Miniport (L2TP)
Did not load driver @netrasa.inf,%mp-bh-dispname%;WAN Miniport (Network Monitor)
Did not load driver @netrasa.inf,%mp-ip-dispname%;WAN Miniport (IP)
Did not load driver @netrasa.inf,%mp-ipv6-dispname%;WAN Miniport (IPv6)
Did not load driver @netrasa.inf,%mp-pppoe-dispname%;WAN Miniport (PPPOE)
Did not load driver @netrasa.inf,%mp-pptp-dispname%;WAN Miniport (PPTP)
Did not load driver @netsstpa.inf,%mp-sstp-dispname%;WAN Miniport (SSTP)
The log repeats these errors and eventually adds some other ones related to the ethernet controller and graphics card. The last drivers it typically loads are usbhub.sys, cdfs.sys, or mouhid.sys.
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The last entry in CBS.log is the following:
2012-01-07 21:08:59, Info CBS Reboot mark refs incremented to: 1
2012-01-07 21:08:59, Info CBS Scavenge: Starts
2012-01-07 21:08:59, Info CSI 0000000b@2012/1/8:05:08:59.898 CSI Transaction @0x2d1f40 initialized for deployment engine {d16d444c-56d8-11d5-882d-0080c847b195} with flags 00000002 and client id [10]"TI6.0_0:0/"
2012-01-07 21:08:59, Info CBS Scavenge: Begin CSI Store
2012-01-07 21:09:00, Info CSI 0000000c Performing 1 operations; 1 are not lock/unlock and follow:
Scavenge (8): flags: 00000017
2012-01-07 21:09:00, Info CSI 0000000d Store coherency cookie matches last scavenge cookie, skipping scavenge.
2012-01-07 21:09:00, Info CSI 0000000e ICSITransaction::Commit calling IStorePendingTransaction::Apply - coldpatching=FALSE applyflags=7
2012-01-07 21:09:00, Info CSI 0000000f Creating NT transaction (seq 2), objectname [6]"(null)"
2012-01-07 21:09:00, Info CSI 00000010 Created NT transaction (seq 2) result 0x00000000, handle @0x134
2012-01-07 21:09:00, Info CSI 00000011@2012/1/8:05:09:00.034 CSI perf trace:
CSIPERF:TXCOMMIT;20601
2012-01-07 21:09:00, Info CBS Scavenge: Completed, disposition: 0X1
2012-01-07 21:09:00, Info CSI 00000012@2012/1/8:05:09:00.034 CSI Transaction @0x2d1f40 destroyed
2012-01-07 21:09:00, Info CBS Reboot mark refs: 0
2012-01-07 21:09:00, Info CBS Idle processing thread terminated normally
2012-01-07 21:09:00, Info CBS Ending the TrustedInstaller main loop.
2012-01-07 21:09:00, Info CBS Starting TrustedInstaller finalization.
2012-01-07 21:09:00, Info CBS Ending TrustedInstaller finalization.
