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Experiencing Multiple Win 7 Systems with User Profile Service fails

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#1 geekdad


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Posted 10 April 2018 - 01:08 PM



In the past week to 10 days, I've had at least 8 Windows 7 systems (mix of pro and home) come in with User Profile Service failures. Some have needed system restore to run and others have simply needed a reboot when this is experienced. I cannot for the life of me determine a common denominator to this. It's a mix of AMD and Intel, all have been running clean (no adware/malware). After getting the systems to boot ok again you may go for a random number of cold starts/reboots and boom it happens again. I am not finding any chatter on this. Can anyone shed any light?

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#2 anton75


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Posted 10 April 2018 - 10:00 PM

There are a few people, me included that has the same issue in this forum.





Probably this comment is the most reasonable reason I know. (thanks for user Kannix)


We're having the exact same problem on several computers of our customers since friday.

On these systems we nailed it down to Microsoft Security Essentials as being the reason, most probably the latest engine security update.

It's not happening with other malware scanners for us.

It is most likely to happen on slower computers (no ssd) with automatic login.

Disabling Microsoft Security Essentials doesn't help, only uninstalling.


The issue with MSE locking ntuser.dat seems to be solved with definitions released around 5 pm (GMT+2) yesterday(4/9/2018).

We are no longer able to reproduce this issue on any of the affected systems.

Still haven't seen anything from Microsoft acknowledging this issue.

Edited by anton75, 10 April 2018 - 10:00 PM.

#3 haqaro


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Posted 11 April 2018 - 07:56 AM

I'm having this same issue in our clients since the Windows Update releases around April 5. I already experienced also the issue with the latest definitions (4/11/2018) just a couple of hours ago.


After reading almost the entire internet, I added to the exclusions the file C:\Users\<user>\ntuser.dat in the Microsoft Essentials, and it worked in my test environment (where in each 5 reboots, at least one time it happened) for now. Obviously this is just a workaround to avoid to happen again. But to prevent that happen in a new other computer, I'm still looking for a solution.


The computers without MSE have no issue at all....

#4 jos789


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Posted 11 April 2018 - 11:34 AM

Same problem here with Windows 7 HP 64bit (3 computers). I did a clean install on one of them and after all  the updates I installed MSE. Then, after a reboot, the login problem occurred again. I did a restart and the computer booted up to the desktop, as it should be.

On the other two computers I did a thoroughly cleanup (both computers where loaded with malware) and I didn't hear anything about reoccurring yet.

Hopefully, the issue is fixed by now.

#5 5h1nj1


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Posted 16 April 2018 - 02:59 AM

FYI, the MSE definiton updates didn't solve this for me up to current date. Nor did adding ntuser.dat to exclusions (it would still say it's locked during boot). Setting a password for users (so there is a delay during boot) seems to work so far, but I'm not 100% sure, as the issue does NOT occur every boot. It worked fine for a whole day (about twenty boots) but next day it started again with the temporary profile.

Microsoft doesn't acknowledge the problem so far afaik.

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