[SOLVED] Boot MGR missing, issue persists after windows 10 install. What now?

[shakeandpop]

My computer build consists of two drives, a 250GB SSD and a 3TB spinning HD. The OS is installed on the 250GB SSD.

I have been experiencing the problem message "BOOT MGR MISSING" upon startup of my PC for quite some time now. I didn't know how to fix the problem, so to work around the issue I have simply booted from my 3TB HDD which has worked consistently for at least the past two years now.

Fast forward to present day, I purchased a new copy of Windows 10 and installed on my computer. I of course was hoping to solve my boot mgr missing issue but it was not resolved. I suspect this is because as the computer restarted several times throughout the install, as usual I received the BOOT MGR MISSING error message. So throughout the install process I would enter BIOS and boot from my 3TB HDD. I tried booting from my SSD several times but continually received the BOOT MGR error message. The results, predictably I guess, are that my BOOT MGR MISSING problem has carried over into my windows 10 install.

Can someone please guide me on how to solve this boot mgr problem for good? I have done lots of googling on the issue. I'm just tentative about my actions because I do not want to lose my data on the computer (pictures etc.)

I would attach a photo of my disk management window, but I cannot figure out how to insert a photo... It would probably help with solving the problem. Here is my attempt at attaching a photo... please help!

Full size: View attachment 123

 

[shakeandpop]

Is there an elegant way to do this so restoring my data from this drive is simple as possible? This HDD is where I store all my valuable data (ie pictures, mostly my lightroom library).

Here is an article that says I can use minitools wizard to convert to MBR-->GPT without data loss. Would you recommend this route? http://partitionmanagement.blogspot...to change MBR,some problems without data loss.

FYI I have already cloned this HDD, so I do have a backup in worst case scenario.

 

[shakeandpop]

also, this issue seems to be separate from the question of how to recover the unallocated partition of the HDD. When I right click on the drive the option to "new simple volume" is greyed out. Any suggestions for me to UN-unallocate this space on the HDD?

 

[wpgwpg]

I've been using the free version of Macrium Reflect for several years, and it's never failed me. There are a number of other backup/restore programs you could use.

 

[USAFRet]

also, this issue seems to be separate from the question of how to recover the unallocated partition of the HDD. When I right click on the drive the option to "new simple volume" is greyed out. Any suggestions for me to UN-unallocate this space on the HDD?

You can't use the whole 3TB until it is GPT.