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This is a discussion on Bluescreen - Windows 7 within the Windows 7 , Windows Vista Support forums, part of the Tech Support Forum category. My Windows 7 machine bluescreened unexpectedly. I have no idea why. Here's a photo of the screen (I was lucky


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Old 06-28-2017, 02:27 AM   #1
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My Windows 7 machine bluescreened unexpectedly. I have no idea why.

Here's a photo of the screen (I was lucky I was able to take a photo in time):

On rebooting, Windows said it recovered from serious error and this is the text from the Details tab:

=====================

Problem signature:
Problem Event Name: BlueScreen
OS Version: 6.1.7601.2.1.0.256.48
Locale ID: 1033

Additional information about the problem:
BCCode: 1000007e
BCP1: FFFFFFFFC0000005
BCP2: FFFFF880097A6FC6
BCP3: FFFFF88008F41758
BCP4: FFFFF88008F40FC0
OS Version: 6_1_7601
Service Pack: 1_0
Product: 256_1

Files that help describe the problem:
C:\Windows\Minidump\062717-12136-01.dmp
C:\Users\Jay Newman_2\AppData\Local\Temp\WER-24164-0.sysdata.xml

Read our privacy statement online:
https://go.microsoft.com/fwlink/?link...8&clcid=0x0409

If the online privacy statement is not available, please read our privacy statement offline:
C:\Windows\system32\en-US\erofflps.txt

=====================

This is the result of the CHKDSK that I ran after the reboot:

=====================

Checking file system on C:
The type of the file system is NTFS.
Volume label is OS-Apps.

A disk check has been scheduled.
Windows will now check the disk.

CHKDSK is verifying files (stage 1 of 3)...
Cleaning up instance tags for file 0x17804.
453376 file records processed.
File verification completed.
1842 large file records processed.
0 bad file records processed.
2 EA records processed.
64 reparse records processed.
CHKDSK is verifying indexes (stage 2 of 3)...
590306 index entries processed.
Index verification completed.
0 unindexed files scanned.
0 unindexed files recovered.
CHKDSK is verifying security descriptors (stage 3 of 3)...
453376 file SDs/SIDs processed.
Cleaning up 1092 unused index entries from index $SII of file 0x9.
Cleaning up 1092 unused index entries from index $SDH of file 0x9.
Cleaning up 1092 unused security descriptors.
Security descriptor verification completed.
68466 data files processed.
CHKDSK is verifying Usn Journal...
37203864 USN bytes processed.
Usn Journal verification completed.
Windows has made corrections to the file system.

445611004 KB total disk space.
215997384 KB in 359304 files.
240804 KB in 68467 indexes.
0 KB in bad sectors.
572504 KB in use by the system.
65536 KB occupied by the log file.
228800312 KB available on disk.

4096 bytes in each allocation unit.
111402751 total allocation units on disk.
57200078 allocation units available on disk.

Internal Info:
00 eb 06 00 06 87 06 00 3d ac 0b 00 00 00 00 00 ........=.......
a8 02 00 00 40 00 00 00 00 00 00 00 00 00 00 00 [email protected]
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................

Windows has finished checking your disk.
Please wait while your computer restarts.

=====================

Does it look like I need to restore the OS drive from image backup, or does it appear that things should be okay? (Mission-critical business machine. Most recent image backup is about a month old. Data is on a different drive.)

Does anything in the above suggest anything that might have caused the bluescreen?

Thanks!
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Old 06-28-2017, 07:26 AM   #2
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Old 06-28-2017, 06:41 PM   #3
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You need to update your Logitech Camera driver - https://www.sysnative.com/drivers/dr...?id=lvrs64.sys

Your driver is old (from 2012) - Fri Sep 21 19:02:17 2012 (hex = 0x505cb9b9)

Regards. . .

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Old 06-29-2017, 12:27 AM   #4
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Quote:
Originally Posted by jcgriff2 View Post
You need to update your Logitech Camera driver - https://www.sysnative.com/drivers/dr...?id=lvrs64.sys

Your driver is old (from 2012) - Fri Sep 21 19:02:17 2012 (hex = 0x505cb9b9)

Regards. . .

jcgriff2

`
Thanks!

Model is C920.

Newest driver is apparently also from 2012, but is a month newer than what I had so I've now updated it: HD Pro Webcam C920 - Logitech Support

(Maybe I need a newer webcam?)
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Old 06-29-2017, 08:56 PM   #5
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Quote:
Originally Posted by jaytechman View Post

(Maybe I need a newer webcam?)
If the newer 2012 driver causes BSODs like the current one does --- yes, a new webcam would be in order.

Regards. . .

jcgriff2

`

p.s. Nice blue-screen picture - I collect them!

Your chkdsk results looked fine - no bad sectors.

John



`
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Old 06-29-2017, 09:02 PM   #6
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Quote:
Originally Posted by jcgriff2 View Post
If the newer 2012 driver causes BSODs like the current one does --- yes, a new webcam would be in order.

Regards. . .

jcgriff2

`

p.s. Nice blue-screen picture - I collect them!

Your chkdsk results looked fine - no bad sectors.

John



`
Whaoh! Dude! Are you saying you're strongly suspecting that that Logitech webcam driver was what caused the BSOD event based on what you saw? (I realizability to decipher all that code information?)
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Old 06-29-2017, 09:10 PM   #7
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Quote:
Originally Posted by jaytechman View Post
Whaoh! Dude! Are you saying you're strongly suspecting that that Logitech webcam driver was what caused the BSOD event based on what you saw? (I realizability to decipher all that code information?)
Not just suspicion, but I absolutely believe that your Logitech webcam driver caused the BSOD. There is no doubt in my mind about it. I've been doing this for over 10 years now and have processed 100,000s if not over 1 million BSOD dumps during that time.

All of the info I needed to make that determination was in your screenshot in your original post #1.

Regards. . .

John

`
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Old 06-29-2017, 09:12 PM   #8
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Quote:
Originally Posted by jcgriff2 View Post
If the newer 2012 driver causes BSODs like the current one does --- yes, a new webcam would be in order.

Regards. . .

jcgriff2

`

p.s. Nice blue-screen picture - I collect them!

Your chkdsk results looked fine - no bad sectors.

John



`
So are you saying you're strongly suspecting that that Logitech webcam driver was what caused the BSOD event based on what you saw?

If so, by all means I'll run out and buy a newer webcam immediately.

It's sure worth it if it potentially reduces the likelihood of another BSOD event.

(I'll do the same for my other machine, too, which is essentially identical.

(BTW, my making time to do the BSOD reporting steps that you suggested is a challenge for me, so for now frequent image backups was my only plan of action, and waiting to see if it occurs again. It's happened about once every year or two years with this machine, so I'm for now hoping it was a fluke before I dedicate the time for that reporting. I'm severely consumed with work to hold the business together and face the growth that may await us and for now it's early-stage with me as CEO, IT manager, etc, etc.)

Thanks so much!!!
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Old 06-29-2017, 09:14 PM   #9
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Oh, sorry for the redundancy. I didn't realize that first post went in (hit Enter inadvertently, I guess).

Thank you again!
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Old 06-29-2017, 09:26 PM   #10
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You are very welcome.

That is why we are here - to try and help.

Regards. . .

John

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Old 07-01-2017, 10:30 PM   #11
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Hi, yep:-

The violation occurred in lvrs64.sys which is the Logitech Camera driver
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Old 07-01-2017, 11:59 PM   #12
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This is a bit odd because when I went onto Amazon to buy a "newer, better" webcam I discovered, to my surprise, that the Logitech C920 that I have is still one of the most popular if not the single most popular. And I've had it on this machine for at least a couple years with no issues. I did update the driver based on the advice I got in this thread but it's only a month newer and is still dated back in 2012.

Is it not possible that the machine froze due to another reason right when the Logitech driver was being invoked, thus making that appear to be the trigger event?

I'm just speculating since I'm not even at novice level in this arena.

I'm thinking maybe there was either some weird "glitch" that occurred in the system that may have been from an electrical anomaly that maybe caused the freeze, or maybe some weird file corruption, perhaps as a result of recent issues with bad Windows updates?

Anyway, I did update the driver to the one-month-newer version and am just watching it now to see if I'm okay. So far, so good.

Thanks again!
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Old 07-02-2017, 05:22 PM   #13
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There is no mistake -- the Logitech driver is listed on the blue screen which means it's on the stack.

You can test the Logitech driver with Driver Verifier if you wish.

Just select it and no other drivers - Driver Verifier - Windows 10, 8.1, 8, 7 & Vista (BSOD-related)

Let Driver Verifier run for a few hours.

Check status from CMD screen - verifier /query

Regards. . .

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