Current windows 7 update trouble and solution

[Steffen Dietzel]

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Dear all,

one of our Win7 64 bit microscope computers (HP Z640 running a Leica
SP8) had an infinity-repair loop today. Very likely it had to do with a
recent update, possibly from end of last week so it came up today. After
some tinkering around I solved it, so I thought I share it here.

It appears to have started with an "Installing updates" screen after
boot up (according to the user who reported the problem). Around about
"30% installed" it aborted and went into the windows repair mode. Repair
failed and after rebooting the same sequence would happen again
(recalled from memory, there might have been additional reboots
involved). In repair mode, the detailed information screen included
"Missing Os Loader" and "Root cause found: Boot manager failed to find
OS loader"

After some internet search (still in repair mode) I opened the command
prompt and entered the three usual bootrec commands:

bootrec.exe /fixmbr
bootrec.exe /fixboot
bootrec.exe /rebuildbcd

but this also did not find a bootloader. I then entered at the command
prompt what was described here::
https://superuser.com/questions/909738/windows-7-64-bit-system-repair-loop

|dism.exe /image:c:\ /cleanup-image /revertpendingactions|

It gave some message about scratch directory space but continued to
"completed successfully".

I rebooted once more and selected "Start Windows Normally" (and not
recommended repair) and eventually the windows login screen appeared.
There was one "important update" that failed, KB4516065. But I have no
way of telling if this caused the problem. Anyway, afterwards this
update installed without problems and the system rebooted.

No problems occurred so far on other, similar systems. Maybe it is just
a freak accident. But since the cited website says "August 2019 Windows
7 update caused this problem." I might not be the only one facing this
right now.

Best

Steffen


--
------------------------------------------------------------
Steffen Dietzel, PD Dr. rer. nat
Ludwig-Maximilians-Universität München
Biomedical Center (BMC)
Head of the Core Facility Bioimaging

Großhaderner Straße 9
D-82152 Planegg-Martinsried
Germany

http://www.bioimaging.bmc.med.uni-muenchen.de

[Rhonda Powell]

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Our Leica rep recently advised me to avoid windows updates on our SPE computer- I’m guessing it is related to this issue! The good news is that Leica must be aware of the problem. The bad news is that I haven’t heard of any updates for fixing it. Thanks for sharing just in case someone accidentally runs updates on our system!

Rhonda Reigers Powell
Research Lab Manager
CLEMSON LIGHT IMAGING FACILITY
Clemson University
Division of Research
190 Collings Street
Life Sciences Facility
Room G024/G030
Clemson SC 29634
P: 864-656-1264
clemson.edu/light-imaging
________________________________
From: Confocal Microscopy List <[hidden email]> on behalf of Steffen Dietzel <[hidden email]>
Sent: Monday, September 16, 2019 12:01:52 PM
To: [hidden email] <[hidden email]>
Subject: Current windows 7 update trouble and solution

*****
To join, leave or search the confocal microscopy listserv, go to:
http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy
Post images on http://www.imgur.com and include the link in your posting.
*****

Dear all,

one of our Win7 64 bit microscope computers (HP Z640 running a Leica
SP8) had an infinity-repair loop today. Very likely it had to do with a
recent update, possibly from end of last week so it came up today. After
some tinkering around I solved it, so I thought I share it here.

It appears to have started with an "Installing updates" screen after
boot up (according to the user who reported the problem). Around about
"30% installed" it aborted and went into the windows repair mode. Repair
failed and after rebooting the same sequence would happen again
(recalled from memory, there might have been additional reboots
involved). In repair mode, the detailed information screen included
"Missing Os Loader" and "Root cause found: Boot manager failed to find
OS loader"

After some internet search (still in repair mode) I opened the command
prompt and entered the three usual bootrec commands:

bootrec.exe /fixmbr
bootrec.exe /fixboot
bootrec.exe /rebuildbcd

but this also did not find a bootloader. I then entered at the command
prompt what was described here::
https://superuser.com/questions/909738/windows-7-64-bit-system-repair-loop

|dism.exe /image:c:\ /cleanup-image /revertpendingactions|

It gave some message about scratch directory space but continued to
"completed successfully".

I rebooted once more and selected "Start Windows Normally" (and not
recommended repair) and eventually the windows login screen appeared.
There was one "important update" that failed, KB4516065. But I have no
way of telling if this caused the problem. Anyway, afterwards this
update installed without problems and the system rebooted.

No problems occurred so far on other, similar systems. Maybe it is just
a freak accident. But since the cited website says "August 2019 Windows
7 update caused this problem." I might not be the only one facing this
right now.

Best

Steffen


--
------------------------------------------------------------
Steffen Dietzel, PD Dr. rer. nat
Ludwig-Maximilians-Universität München
Biomedical Center (BMC)
Head of the Core Facility Bioimaging

Großhaderner Straße 9
D-82152 Planegg-Martinsried
Germany

http://www.bioimaging.bmc.med.uni-muenchen.de