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Windows 7: [solved] Problem to install SP1 - bcdedit problem

04 Jan 2013   #1

Windows 7 Pro x64
[solved] Problem to install SP1 - bcdedit problem

Dear all,

My problem is solved, but it took me so long to get it solved that I decided to post my experience in case it could help someone else.
Sorry if I'm not very precise in the manipulation I did, I don't remember everything precisely.

My 1st problem: SP1 failed to install when running the Windows Update manager. When failling, it was suggesting a help page from Microsoft but all the propositions on that page also failled.

My 2nd problem: Apparently, the problem was linked to another one on my computer: at the startup, during the boot process, a black screen was offering 2 identical "Windows 7" options (waiting 30s when not pressing enter) while only one Win7 was actually installed. I don't know why this screen was shown (when I installed Windows, a Linux distrib was installed on another disk with the boot flag, this is my best guess).

Anyway the two problems seemed linked because one of the proposition to solve the SP1 installation problem was to type the command "bcdedit" (elevated) which was failling, and which is precisely intended to manage the black boot screen also annoying me.

Solution of the 1st problem: after Googling, I tryed several methods, the one that worked was to press F8 during the boot sequence to enter the System Recovery Option menu. When entering this mode, it told me that something was wrong, asked me if I wanted it to repair automatically and reboot, I agreed and on the next start up, I could install SP1 in the regular way.

But, this didn't solved the 2nd problem, nor rebuilding the BCD from stratch via command prompt in the System Recovery, nor editing the BCD base using the bcdedit command line...

Solution of the 2nd problem: I used a shareware named EasyBCD (free version was enough), in the "BCD Backup/Repair" tab, I reseted the BCD configuration, then added a new Entry in the "Add new entry" menu for Windows 7 only.

I guess it could be done with the bcdedit command line, but I didn't succeded. The entry {bootmgr} was wrong, but I didn't know what the proper configuration it should have...
Of course, I had to reinstall Grub2 in order to boot my Linux distrib.

My System SpecsSystem Spec
04 Jan 2013   #2

Windows 7 Pro x64

It turned out that the problem was indeed because of the installation of Linux (and because I had a partition on another disk marked as active during the installation).
See this thread for completeness.
My System SpecsSystem Spec

 [solved] Problem to install SP1 - bcdedit problem

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