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Windows 7: Win7 - Linux Multiboot Disaster

15 Aug 2012   #1

Win 7 64
Win7 - Linux Multiboot Disaster

Windows Experts,

I hope you can help me because through sheer stupidity on my part I can't get into my Windows installation.

Windows is on HD #2 on my system. I installed Linux (with which I am totally unfamiliar) on HD #1 in a partition that was formatted for NTFS but was empty.

Prior to installing Linux I used a boot menu to select between partition C: on HD# 1 (where Windows once resided) and partition F: on HD #2 the active installation of Windows.

I can boot into the Linux partition by changing the order of the drives in the BIOS.

From what I've read since installing Linux, I probably overwrote the MBR in HD #1.

How do I get myself out of this ridiculous predicament I find myself in. If I delete the Linux partition on HD #1, how do I make the Windows partition on HD #2 bootable?

My System SpecsSystem Spec

15 Aug 2012   #2
Microsoft MVP


With separate HD's always unplug the other one when installing another OS, then after install boot preferred by setting it first to boot in BIOS setup, boot the other OS using one-Time BIOS Boot Menu key to trigger it's HDD. These keeps GRUB boot loader from potentially corrupting Windows 7.

For now unplug the Linux HD, set Windows 7 HD first to boot in BIOS setup, Mark Win7 Partition Active from the booted Windows 7 installer or System Repair Disk, then run Startup Repair - Run 3 Separate Times to repair or rewrite the System boot files to Windows 7 partition or it's 100mb System Reserved partition (preferred if you have it).

After this, plug back in the Linux HD to see if you can boot it independently via the BIOS Boot menu key at boot. If so you may want to keep it. If not I would move any data you need off the HD to wipe it with Diskpart Clean Command from Windows 7 Elevated Command Prompt.

If Linux HD blocks Windows 7 boot in any way, boot the Windows 7 installer/Repair CD to copy out any files you need from it's HD, then wipe it with Diskpart Clean command from the System Recovery Options Command line.
Copy & Paste - in Windows Recovery Console

If Windows 7 will not repair after trying all other fixes in Troubleshooting Windows 7 Failure to Boot, copy out your files to run Factory Recovery if it's still bootable or you have disks, or get the superior Clean Reinstall - Factory OEM Windows 7 which steps are the same for retail. Everything you need is in the tutorial including the Windows 7 installer for your licensed version.
My System SpecsSystem Spec

 Win7 - Linux Multiboot Disaster

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