I'm dual booting two windows 10, bootgmr issue

Welcome to the forum. The c paritions isnt set as active so it cant boot its booting from the system partition on the other drive which is active. Your best bet is proberley to copy the stsem partition to c but its going to take some juggling to do it

Samuria said:

Welcome to the forum. The c paritions isnt set as active so it cant boot its booting from the system partition on the other drive which is active. Your best bet is proberley to copy the stsem partition to c but its going to take some juggling to do it

Thank you for the warm welcome, anyway, how can I do that? I'm not that much experienced into that kind of stuff, I heard that the best bet would be to format the HDD's partitions or something like that.

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By the default, it's booting on my SSD, I set it by the default to boot on SSD's Windows 10, and that's working fine, however, if I remove the HDD completely from my PC, I get that black screen, probably because Disk 0 (HDD) is marked as "Active" as you've previously said, not sure how would I change that my SSD's Windows 10 partition is marked as "Active" instead.

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So basically, you're saying that if I move the System Reserved partition to my SSD, it would work fine?
https://i.imgur.com/Q9BXfjn.png

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I noticed that this may actually work, but I'm not 100% sure should I try it, basically, I came across this link How to Set or Mark a Partition as Active in Windows, and I saw that I can actually mark my SSD's partition as "Active" since it already has bootmgr file and everything else, and my SSD's drive matches every three cases from this photo: https://i.imgur.com/t3zPRlP.png, and I also have option to mark it as "Active" as showcased on this screenshot: https://i.imgur.com/eifBCOX.png
I want to hear your opinion

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What if I try this method?

Method 2: Move system reserved partition to different drive with command line
Except for Disk Management, Diskpart can also help you move system reserved partition to another drive, but this method only work well on Windows 7 and Windows 8.

Now, let's begin the steps:

Step 1. Open cmd as administrator, type the following command and hit enter.

bcdboot C:\windows /s C:

Step 2. Open Disk Management, right-click the C drive and select "Mark Partition as Active".

Step 3. Select the system reserved partition and tap on "Mark Partition as Inactive ".

Step 4. Restart your computer and confirm it can boot successfully.

Step 5. Right-click the system reserved partition and select "Change Drive Letter and Paths", then follow the on-screen instruction to assign a letter for this partition.

Step 6. Right-click the system reserved partition again and tap on "Delete Volume".

Its not simple as the boot files will be on the other drivve and they need to be there for the disk to work if its set active. In simple terms you need to resize c enough to put the other parition at the front then copy the partition over Top Three Ways to Move System Reserved Partition to Another Drive

I safer simple way is to remoce the old drive and then do a clean install if you wanted to do that I would wait a few days as the latest version is due any day now and it would be better to install the latest version. If you put an old version on taaking 2 hours then you would get a 2 hour update in a few days

Samuria said:

Its not simple as the boot files will be on the other drivve and they need to be there for the disk to work if its set active. In simple terms you need to resize c enough to put the other parition at the front then copy the partition over Top Three Ways to Move System Reserved Partition to Another Drive

I safer simple way is to remoce the old drive and then do a clean install if you wanted to do that I would wait a few days as the latest version is due any day now and it would be better to install the latest version. If you put an old version on taaking 2 hours then you would get a 2 hour update in a few days

What if I do this Moving System Reserved partition to a different drive | [image]

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I think I also already have latest Windows 10 version - Windows 10 1909

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I think I would experience a little problem, which is that on my old HDD's Windows updates weren't made for a lot of time, does that mean if I move the "System Reserved" partition to my C: drive, my Windows files will change or something?

The 1909 version is being replaced any time now with a full new version. There are several ways of moving the parition which ever you try be sure to backup all your data first as if it goes wrong a clean install may be the only option

Samuria said:

The 1909 version is being replaced any time now with a full new version. There are several ways of moving the parition which ever you try be sure to backup all your data first as if it goes wrong a clean install may be the only option

What would be the best way to backup my data? Also, what would you recommend me to do? Wait for the newest update and then do it or what? Clean install is the easiest option which I do not want to perform because I know there are other ways that can prevent formatting and everything else.

It down to how confident you are with moving paritions its worth looking on youtube as there are a lot of tutors and a video makes it simpler to see

Samuria said:

It down to how confident you are with moving paritions its worth looking on youtube as there are a lot of tutors and a video makes it simpler to see

I personally never performed it alone before, I'm pretty sure that the EasyBCD would work, if I follow guide from Kyhi's quote from this link: Moving System Reserved partition to a different drive | [image]

Kyhi said:

use EASYBCD > EasyBCD - NeoSmart Technologies
select BCD Backup/Repair
Mark, (dot) Change boot drive
click perform action..

Attachment 52976

I find it as the easiest & fastest solution.

The solution is super simple. In a command prompt (admin) run:

bcdboot C:\Windows /s C: /f ALL

Unplug the HDD and boot up and see what happens.