Windows 7 Forums

Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.

Windows 7: Chkdsk Error (766f6c756d652e63 3f1)

26 Sep 2013   #1

Microsoft Windows 7 Ultimate x64 / 6.1.7601 Service Pack 1 Build 7601
Chkdsk Error (766f6c756d652e63 3f1)

Hi folks, hoping someone can help me with the proverbial, Windows 7, "chkdsk" error (766f6c756d652e63 3f1).

After an exhaustive Google search, I see that many folks suffer from this, but in all the forums researched, no one has really come up with a definitive answer.

I mean, there are a ton of usual posts where someone boasts out in glee, that, hey, this worked for me, and then you try it, and it doesn’t work. The usual.

So, the whole story is this:

Any time I setup my C: drive, to do a full disk check, which requires the usual reboot, the reboot comes back up, and I get the same message on the screen, (see attached photo).

And even though, the majority of all forums discussing this error agree that, it actually does not have anything to do with installed software, I have tried every single listed fix, in every forum that I have researched, to no avail.

For instance, I have:

Within Windows 7, went into “Disk Management”, and saw that the “System Reserve” section of my C: drive was not assigned a drive letter. A lot of the fixes state to assign a drive letter to the “System Reserve”, and then try again. And many pulled the, “It worked for me”, but that didn’t work for me.

Next another fix that didn’t work for me, I hit F8 to get to the Safe Mode menu, and from there, you’re supposed to choose the option, “Repair Your Computer”, usually the very first option at the top of the list. When I choose that option, Windows just continues to boot into a normal Windows session. (??) Don’t think that’s supposed to happen.

Next, I have even connected a separate, clean, “bootable” hard drive, with Windows 7 installed, to my system, booted from this “new” hard drive, and tried checking my C: drive, from the new bootable hard drive. Now of course my original, problematic, C: drive on this new hard drive is now designated as E:. So, from this “new” hard drive, within Windows Explorer, I right click on E: choose Properties, and then the Tools Tab, and under Error Checking, I choose, “Check Now”, and make sure both check marks are ticked, and hit Start. It actually starts to check my C: drive, and as all of us know, this process, depending on the size of your hard drive, takes quite a while to complete. So, I walk away, …go to bed really. Get up in the morning expecting a report on errors found, and here, the computer has rebooted itself, somewhere in the night. Thats not good either, I should have still been in the OS of the "new" hard drive.

Other than not being able to do a full chkdsk on my C: drive, the system works perfectly. No BSOD, nothing.

So, again, I have tried everything that others say worked for them, to no avail. What’s left?


Attached Thumbnails
My System SpecsSystem Spec

28 Sep 2013   #2

x64 (6.3.9600) Win8.1 Pro & soon dual boot x64 (6.1.7601) Win7_SP1 HomePrem

If you have a repair disc, if not create one, and boot with that.
Select Command prompt option
use diskpart command to determine which drive letter is assigned to your original "C:\" drive.
lis dis
sel dis 0
lis vol

chkdsk /r c:
amend: diskpart might identify the drive letter as something other than C: - chkdsk the disk that really is the system disk.
reboot using HDD
open an elevated command prompt
sfc /scannow
Might help

My System SpecsSystem Spec
19 Nov 2013   #3

Microsoft Windows 7 Ultimate x64 / 6.1.7601 Service Pack 1 Build 7601

Out of all fairness to the good people of the forum, I have discovered the reason for my Chkdsk not working.

The problem deals with Kaspersky Anti Virus, and I kind of thought, that, that was just about the time I had not been able to setup a Chkdsk.

A couple good Google searches, and enough people experiencing the same problem as me, revealed the truth of this issue.

As an example:

Kaspersky AV Breaking CHKDSK? - Security forum regulars lament 'iSwift' technology | DSLReports, ISP Information

Apparently, from what I am reading, even after uninstalling Kaspersky, the problem remains. Great.
My System SpecsSystem Spec


 Chkdsk Error (766f6c756d652e63 3f1)

Thread Tools

Similar help and support threads
Thread Forum
An unspecified error occured (766f6c756d652e63 3f1).
Hello Everyone, this Error as once again returned. An unspecified error occured (766f6c756d652e63 3f1). I think i posted about this a few months back i was able to do a few image backup using EaseUS Free...
General Discussion
chkdsk will not run.......error 766f6c756d652e63 3f1
Hi guys. I'm using a fairly new laptop, had it for less then a yr. It came w/ Vista and I never had to use Chkdsk on it. I used the Windows 7 upgrade disc about 3 weeks and upgraded to Win7 w/ no issues. Love it so far. Today my computer froze while shutting down. I had to hold the power...
Performance & Maintenance
Chkdsk error on boot
Hi my girlfriend laptop turned off by its self and now she's receiving these messages, would appreciate any advice, Thank you in advance
Hardware & Devices
chkdsk utility error
when ever i start my laptop its gets hung on win7 logo and when i boot it while using win7 dvd after collecting information i.e: in which partion you want to instl windows... and after that it show a msg system32/bcd.........n " chkdsk utility " and i cant access my startup thats y i cnt access...
Performance & Maintenance
Error code 766f6c756d652e63 3f1 when running CHKDSK
Greetings. My system has 4 drives, 1 SSD and 3 HDDs. Windows 7 is installed on the SDD and one of the HDDs. I also have Windows XP installed on one of the HDDs. I cannot get Chkdsk to run on either of the Windows 7 installs with the error code shown. Chkdsk will run fine on the XP install...
Performance & Maintenance
chkdsk error at startup
I upgraded from Vista to Win 7 using the HP upgrade disk. About every 2 weeks chkdsk will start at startup. The countdown won't stop and I can't skip it by pressing any key. When it counts down to 1 it freezes and I had to press the power button to restart. Then when it restarts the problem...
General Discussion

Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

© Designer Media Ltd

All times are GMT -5. The time now is 03:28.

Twitter Facebook Google+

Windows 7 Forums

Seven Forums Android App Seven Forums IOS App