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Windows 7: Bootmgr on external drive ?

23 Jul 2010   #1

Win7 x64 Ult
Bootmgr on external drive ?

I have 3 drives, C-OS internal, D-data internal, E-data external. "Bootmgr" appears on C and E, but not D. I thought this was some kind of error, deleted it off E, machine wouldn't boot. A quick fix with the Win 7 DVD, all was well again.

Is there any reason the bootmgr file is on the external drive?
C = RAIDO - 4 SSDs
D = 64 GB Patriot SSD
E = WD 640 GB spinner - connected by eSATA cable to eSATA port on back panel.

My System SpecsSystem Spec
23 Jul 2010   #2


Check with DISKPART or free Partition Wizard that only your OS drive is Active.

If not, mark ONLY the Win7 partition active then boot the DVD/Repair CD to run Startup Repair up to 3 separate times with reboots to repair or write the MBR to Win7.
My System SpecsSystem Spec
23 Jul 2010   #3

Win7 x64 Ult

Thanks GR, as soon as I get the machine to boot up I'll check it out. Right now it is in rough shape, not related to the bootmgr issue.
My System SpecsSystem Spec

24 Jul 2010   #4


If it won't start Windows, then boot the Win7 DVD repair console, press Shift F10 or click through to Recovery Tools list to open a Command line, then use DISKPART to mark Win7 partition active: Partition - Mark as Active - Windows 7 Forums.URL

Close command line, from Recovery Tools list select Startup Repair to run up to 3 separate times with reboots to repair or write the MBR to Win7: Startup Repair - Windows 7 Forums.URL

If it continues to fail to start, tell us exactly when it fails and any error message.
My System SpecsSystem Spec
24 Jul 2010   #5

Win7 x64 Ult

I got machine booted - when I was working in the case to add 2 drives, I moved a SATA cable to one of the SSDs in the RAID 0 array. Once I secured the cable, all was well and I just deleted the bootmgr file off the drive, which I now have as part of a 2 drive RAID 1 array for data.

Thank you for your reply.
My System SpecsSystem Spec
25 Jul 2010   #6

Windows 7 Ultimate x64 SP1, Windows 8.1 Pro x64, Windows 10 Pro x64

As far as the operating system is concerned, an eSATA drive is not necessarily external.
My System SpecsSystem Spec

 Bootmgr on external drive ?

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