Windows 10: Windows Boot Manager Uninstalled through BIOS

Recently I downloaded Grub2Win on my computer, only to be shredded by it. Grub2Win changed the name of Win Boot Manager from the bios to Grub2Win x64So I deleted Grub2Wib from my computer, but I didn't know that it took down my Win Boot Mgr with itself. Ri8 now I have no working OS, and my Win Boot Mgr is deleted windows is still on my SSD only the Win Boot Mgr record is missing and all I have access to is just the BIOS, is there any other way that I could use to tell the Bios that there is a windows installed and recover my windows Boot manager?

:)

 

Windows stuck in automatic repair; Can't access BIOS/ boot menu

I've changed the boot order through both BIOS and the boot manager, as my original post stated. Neither did anything, but both were functional in the past. Neither listed the windows boot manager, either. Previously, it would boot just as expected whenever
other media was set as the first option, so I'm pretty sure there are no issues there.

As my original post suggested, I've already tried out the steps you gave. I've gone through all the options listed in the boot menu, UEFI or not.

My BIOS and boot menu settings were at their defaults when all of this started, so that's been tried already, if those are what you're referring to.

 

No Windows Boot Manager on dual boot system (7 & 10)


I thought I'd just post a little guide.

This is the only thing that worked on my ASUS N55SF dual boot system: Win7 on HDD (MBR) and Win10 on SSD (GPT).

Step 1
Assuming that you have already Win7 installed on your primary disk, install Win10 on your secondary disk.

Step 2
When install is done, enter your BIOS and go to the Boot section. There you should see "Windows Boot Manager" as your default boot option. Change it so that your primary disk (where you have Win7 installed) becomes your default boot option (it should be something like "P0:" followed by your disk model number, mine is "P0: ST9750423AS"). Save and restart.

Step 3
Now Win7 should start automatically (no boot manager showing up). Enter Win7, open an elevated command prompt and run
bcdboot X:\windows
where X is the Win10 system partition as seen from Win7, typically E, F, G or H.

Step 4
Restart. You should now see the Windows Boot Manager (probably the Windows 10 GUI boot manager). Select Windows 10, install your audio drivers (if you already have, I suggest you uninstall them and restart before doing this), restart and you're done.

 

Windows boot manager

There could be some system conflict triggered after the said changes. To help you with your concern, we suggest that you perform a clean boot. A
clean boot is performed to start Windows by using a minimal set of drivers and startup programs. This will help to determine what is causing the issue on the Windows boot manager. To do this, click on this
link and scroll down to the
How to determine what is causing the problem by performing a clean boot section then follow the steps listed..

Note: If the installation is successful and the issue has been resolved. Please go through the section “How to reset the computer to start as usual” to reset your computer to the normal startup.

Let us know how it goes after performing the suggested steps.