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I need MBR help. (SOLVED)

post #1 of 4
Thread Starter 
OK problem: I had a dual boot system with each OS on its own drive, One drive died and now system will not boot.


OK what I did: I installed Windows 8.1 on a HDD did updates and drivers all working.

Then I installed another HDD and installed 8.1 on it and did updates and drivers on it also,

Checked to make sure the dual boot was working, All was good.

Then on the second 8.1 install I did the free upgrade to Windows 10.

Everything worked great had a dual boot of 8.1 and 10. Been that way with no problem for almost 8 months.

Now I had almost stopped using the 8.1 and use 10 for everything these days.

BUT the 8.1 HDD just died and is not detected any more, But the Windows 10 HDD is in the BIOs.

But now the system will not boot. I know its the MBR, Can that be fixed without a reinstall?

I dont care about the 8.1 all I really want is the Windows 10 from now on. And I really dont want to have to reinstall.

I have a USB install of Windows 10 that I did recovery console and fix startup but that did nothing.


PLEASE any help with this?
post #2 of 4

I think you have to use the bootrec command. Like, "bootrec /fixboot", "bootrec /fixmbr" and "bootrec /rebuildbcd" (all 3, in any order you wish).

 

http://www.digitalcitizen.life/command-prompt-fix-issues-your-boot-records

 

(I don't think you need to type bootrec.exe, but whatever - as long as it works)

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It's a computer!
(19 items)
 
  
CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveHard DriveOptical Drive
250 GB Samsung 840 EVO (C:\) 250 GB Samsung 840 EVO (D:\) 150 GB WD VelociRaptor Samsung SH-S243N 24x DVD Burner 
Optical DriveCoolingOSMonitor
Samsung SH-S203N 20X DVD Burner Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) 
KeyboardPowerCaseMouse
Filco Majestouch 104-key Cherry MX Blues w/NKRO Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate 
Mouse PadAudioAudio
Basic, but premium round X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
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post #3 of 4
Most likely the boot loader was on the failed drive in that case, look at the partitions on the surviving drive, the system partition that houses it is most likely missing. Also are you sure your drives are setup MBR, if you using efi bios they could be GPT, Either way, most likely whats needed is to add the pointer for the windows 10 install in the boot loader on the new install. I put a link below this should point you in the right direction.

https://msdn.microsoft.com/en-us/windows/hardware/drivers/devtest/adding-boot-entries
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Eclipse
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Samsung 850 EVO 250GB Toshiba P300 1TB 7200RPM WD Blue 3TB Samsung Dual Layer DVD-RW 
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post #4 of 4
Thread Starter 
Thanks for the links. I tried everything I could from those and none of it worked.


But in a reply I saw someone said to use a program called EasyBCD I downloaded it and it worked now Im back up and going.


Thanks again guys.
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Overclock.net › Forums › Software, Programming and Coding › Operating Systems › Windows › I need MBR help. (SOLVED)