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: BSOD when saving Word 2010 files - 0x0000007e - mup.sys - Win7 64bit

31 May 2012   #1

Windows 7 Pro 64 bit
BSOD when saving Word 2010 files - 0x0000007e - mup.sys - Win7 64bit


First posting. Any help with this would be appreciated.

Machine/System spec:
CPU Type HexaCore Intel Xeon X5660, 2800 MHz (21 x 133)
Motherboard Name Hewlett-Packard HP Z800 Workstation
Motherboard Chipset Intel Tylersburg 5520, Intel Westmere
System Memory 6128 MB (DDR3 SDRAM)
Microsoft Windows 7 Professional 64 bit
OS Service Pack Service Pack 1
System hardware - new (2012)
OS age - new (2012) not re-installed.

This workstation has Microsoft Office 2010 Home and Business installed. When a document is saved the machine will crash with bsod in mup.sys.

This appears to only happen when saving a document, docx format, to a physical drive other than the one containing the OS. So saving to a folder on drive C: appears to be ok, equally saving to logical drive K:, which is also on the first physical HDD, is also ok. However saving to any logical drives on other physical HDDs produces the bsod.

Of course the physical drive aspect my just be coincidence.

I've attached the bsod analysis and perfmon report in file

If anyone needs any more information please let me know.

Thanks for any help.

All the best

My System SpecsSystem Spec
31 May 2012   #2
Vir Gnarus

Microsoft Community Contributor Award Recipient

Windows 7 64-bit

Some "MirrorFolder" application that was recently installed (May 03, 2012 is date of driver) seems to be fouling up. You'll want to find an update for it, and if that doesn't work, uninstall it.
My System SpecsSystem Spec
01 Jun 2012   #3

Windows 7 Pro 64 bit

Hello Vir Gnarus,

Many thanks for that, I think you are correct. MirrorFolder is a good product but has had some issues in the past, usually under XP causing a hang during boot. The only way out of that was to go to safe mode and disable it then re-boot.

It also explains the lack of bsods when saving to the first physical HDD as MirrorFolder only mirrors files on the 2nd and 3rd HDDs.

Thanks again for your help and fast response, I'll do some tests over the weekend and mark it as solved next week.

Have a good weekend,

My System SpecsSystem Spec


 BSOD when saving Word 2010 files - 0x0000007e - mup.sys - Win7 64bit

Thread Tools

Similar help and support threads
Thread Forum
BSOD when saving files? Win7 home premium 64bit
The only correlation I've been able to make is when saving files using GIMP (files located on non-system drive) BSOD occurs after clicking export button to save file as jpeg. Thanks in advance for any assistance.
BSOD Help and Support
Word 2010 - Styles Ribbon Behaviour When Saving Protected Doc/Dot
Open a new document. Create 2 text boxes Link them Enter some text All the while it is possible to use the Styles ribbon to change the formatting in the text boxes. Now Restrict Formatting and Editing by Formatting restrictions -> Limit formatting to a selection of styles
Microsoft Office
Saving in word but files are not saving
I open a file sent to me in email, click enable editing, work on it for three hours, hitting save all the while, then go to email it back and the file is gone. It isn't in my documents where I saved it, and it isn't under recent files. Please please please help me. I am sure you can relate to...
Microsoft Office
Saving Clipboard Content in Word 2010
Good day. I did a search for this, but could only find a post so old it was in the 2010 beta section, and I was warned about posting there. My problem is roughly the same as the OP: I work on complicated phonetic documents, and I would like to keep the contents of my Word clipboard when...
Microsoft Office
Word 2010 Saving Bug
In attachment I've load sample template to reproduce bug. Steps: 1. Open Template 2. Ctrl+A (select) 3. Ctrl+C (copy) 4. Ctrl+End (to the end of document) 5. Ctrl+Enter (page break) 6. Ctrl+V (paste) 7. Ctrl+S (save) And after save we see that first line of the second page dissapeared!
Microsoft Office

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 08:53.
Twitter Facebook Google+