Bootmgr missing after cloning win7

Kevin Shelbrock

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Feb 26, 2015
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So i am trying to temporarily get around upgrading my win7 to win10 by dual booting. I know i cannot obtain a product key without upgrading from my 7 but my work at home program is not win10 ready yet. My solution was to clone my win7 drive, upgrade one of them and viola, violate the system long enough for work to catch up to me. I used Macrium Reflect to clone my drive to an empty partition, when going to the OS selection in my BIOS it only shows 1 windows 7, if i try to change the drive that i want to boot it tells me Bootmgr missing. any ideas on how i can fix this?
 

USAFRet

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Right. The boot partition that originally exists on that drive knows nothing about what you cloned into that other partition.

Possibly open up msconfig, select the Boot tab, and see what you can do there.
 

Kevin Shelbrock

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Feb 26, 2015
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same computer, different drive, i cleared some space on a non system drive and cloned it there I even cloned the boot partition... not sure what im supposed to be looking for in MSConfig. it only shows one instance of windows. this is well beyond anything ive tried before, and the research i did prior too choosing my tool made it sound oh to simple, i guess i jumped over my own head.
 

Kevin Shelbrock

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Feb 26, 2015
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same computer, different drive, i cleared some space on a non system drive and cloned it there I even cloned the boot partition... not sure what im supposed to be looking for in MSConfig. it only shows one instance of windows. this is well beyond anything ive tried before, and the research i did prior too choosing my tool made it sound oh to simple, i guess i jumped over my own head.
 

USAFRet

Titan
Moderator


So you have 2 instances of the same OS installation in the same PC, just on two different drives?
The boot partition on the first OS needs to know about the second OS install.

Or, in the BIOS, select which drive to boot from. This would probably be easiest.
 

USAFRet

Titan
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Can you post a screencap of your Disk Management window?
 

Kevin Shelbrock

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Feb 26, 2015
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Zws00x3.png
 

Kevin Shelbrock

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Feb 26, 2015
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ok, so 1 problem solved, couldn't get computer to even boot the cloned drivce because the boot partition was not active. now it will, problem is it is booting the original windows partition not the clone, because there is not a boot entry for the clone. creating a new boot entry is way the * over my head.
 

Kevin Shelbrock

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Feb 26, 2015
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ok so activated both of the clone partitions, did not relocate them, ended up causing a serious * boot issue where my computer will not identify drives to boot form at all... used my windows disk to repair startup... still wont identify the boot partition on its own, have to pull up the drive list in the bios and manually select my primary windows drive, but now my boot manager shows 2 recovered windows partitions, and the clone isnt the copy that i a made, its a later recovery from work ive done tonight lol. so as of now i have to bootable windows 7 partitions on 2 different drives, but still wont boot on its own the way its supposed to. partnering with my dad later this week to try and resolve that, dont want to mess with it anymore tonight because i work at home and cannot risk not being able to boot the next three days. but im pretty sure that once i correct the boot partition problem that i will be able to upgrade the cloned windows partion to 10 and boot them correctly from the windows bootmgr.