Similar Problem I installed Windows 7 Profressional x64 upgraded from XP Home x86.
I have three drives.
C: Windows 7 - Is a RAID drive, my main drive.
I used to have XP on C:, I installed Win7 from DVD and I used the format the drive option in setup.
D: Stuff - Is where I have my pagefile and misc storage.
I used to have Win7 RC on D: and I have been using Win7 since May.
The D: drive was formatted before installing Win7 and I saved the Windows Easy Transfer backup file to that drive.
X: Windows XP - Is an e-SATA portable drive.
I used the Western Digital software to backup my entire XP RAID drive to the external drive so
- I could boot to XP by switching the boot drive in BIOS.
When I installed Win7 I left X: plugged in (by mistake) and Win7 setup put the bootmgr on X:.
The PC will not boot at all unless I boot to X: and choose Win7 in the bootmgr.
The PC does default to Win7 and will boot from C: if I don't touch anything.
I tried installing Win7 a second time with X: unplugged and again I used the format C: option in setup.
It still will not boot unless I set the BIOS to X:.
I get missing bootmgr or missing winloader errors.
I do not understand why it won't boot from C: if the drive was formatted by Win7 setup
- and the X: drive was disconnected when I setup Win 7 the second time.
I have been reading the forums looking for a solution, because it appears many people are having bootmgr problems.
First I tried EasyBCD 1.7.2.7 from NeoSmart Technologies - that did not help.
Then I tried booting from the install DVD and using the repair option - The repair does not detect any problem.
Next I tried booting from DVD, opening a command prompt window and entering
bootrec /fixmbr,
bootrec /fixboot,
bootrec /rebuildbcd - No Luck.
Today I tried opening a command prompt window from Win7 and entering
bcdedit /set {bootmgr} device partition=c:
I got "The boot configuration data store could not be opened. Access is denied".
I have been using PC's since the original 8088 IBM PC (DOS, W3.1, W95, W98, NT and XP).
I never installed Vista on my PC but I have Vista training and have fixed a lot of Vista PC's for my friends.
I do not know what you mean by opening an elevated command.
I want to be able to turn off my X: ternal drive and have
- Win7 boot from C: without any intervention from the bootmgr.
If I want to boot XP, I want be able to select the X: drive in BIOS, again with no bootmgr.
I really do not want to install Win7 a third time and have to setup all my software again.
I have already deleted my Easy Transfer backup file, but I can always use X: as my backup.
For security I want to unplug my X: ternal drive and put it somewhere safe and use it as little as possible.
I built my own PC with parts from Tiger Direct
APC Back-UPS ES 750 Watt
BFG 550 Watt Power Supply
Intel Core 2 Duo E8400 - 3.0 GHz - Overclocked to 3.6 GHz
EVGA nForce 750i
For
The
Win Motherboard - 1600 FSB
EVGA GeForce 9600 GT - 1Gig DDR3 PCI-Express 2.0 Video Card
Acer 24†LCD Monitor
8 Gig 960 MHz Kingston DDR2 RAM - It is 1066 RAM but the system is unstable at that speed
Floppy - A:
500 Gig Maxtor SATA RAID Hard Drive - C:
500 Gig Maxtor SATA RAID Hard Drive - C:
500 Gig Seagate Barracuda SATA Hard Drive - D:
Lightscribe 22X DVD-RW - 48X CD-RW - IDE - E:
56X CD-ROM - IDE - F:
16 Gig USB Flash Drive - G:
1000 Gig Western Digital e-SATA External Backup - X:
RS-32 Serial PCI Card
Belkin 7 port USB 2.0 Hub
Bluetooth USB - Sabrent
HP 6988 Printer - USB
HP 3670 Scanner - USB
HP VGA Webcam with Microphone USB
Logitech diNovo Bluetooth Keyboard
Logitech MX100 Bluetooth Mouse
Logitech G5.1 Speakers
Microsoft PS/2 wired keyboard and ball mouse - For BIOS and to turn on the Bluetooth
My Logitech Bluetooth dongle died and the replacement I got does not start automatically with Windows.
All drivers are up to date and I recently flashed the BIOS on the MB before installing Win7.
I am using a Vista x64 (185.2) Geforce driver because the current Nvidia driver has DRASTICALLY poor performance.
Please help.
My system is working great, I LOVE Windows 7 but the boot problem is making me crazy.
Microsoft seems to have a problem with the setup routine because a lot of people are having similar issues.
I want to be able to unplug my backup drive and store it away.
Link to screen shot.
Link Removed - Invalid URL Screen shot is attached