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Question

Hi,

I just switched hard drives on one of my sata cables and now windows isn't booting. I'm getting the error code in subject line. I've tried boot priorities in bios and booting from usb windows tool to repair, but it's not working.

Answer 1

Yes, I would convert to UEFI since WIndows was not correctly installed to UEFI and is in Legacy Mode. Just follow the steps in the tutorial.

Afterward it should boot in UEFI mode with WIndows Boot Manager set first to boot in BIOS.

Keep me posted on your progress as I will be here to help until the case is resolved.

Answer 2

Data drive never had a windows installation.

When I change the boot mode select in bios from legacy+uefi to uefi the ssd disappears from the the boot options.

So now I should unplug the data drive and follow instructions to convert to uefi gpt?

Answer 3

Did the data drive ever have Windows installed on it, and if so was it properly wiped off the drive by deleting all partitions, or (even better) cleaning the drive with Dispart as shown here before formatting it:

http://www.howtogeek.com/235824/how-to-clean-a-...

Windows Boot Manager should be set first to boot on a modern UEFI System, unless you installed in the old Legacy Mode and didn't boot the installation media as a UEFI drive to install Windows.

Installing in Legacy or CSM mode on a UEFI BIOS is like buying a new car and disabling all of the safety and performance features.

What I would do is use the built-in Windows tool to convert from Legacy MBR drive to UEFI GPT format SSD, with all other drives unplugged.

The instructions are here:

https://www.makeuseof.com/windows-10-11-convert...

After conversion you can plug in the data drive and it should not interfere.

Feel free to ask back any questions. Based on the results you post back I may have other suggestions if necessary.

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Answer 4

I switched from my old ssd (166 gb samsung) to my old non windows hard drive. So now I'm trying to have my new 1 tb Samsung windows boot drive and my 320 gig file hdd. When I installed windows 11 on new sdd, my other ssd was sata 2 and drive D. When I switched sata 2 to hdd today is when error occurred.

In BIOS, the correct ssd is boot priority 1. It did not boot up when I removed sata from the other drive. When I plugged it back in, it did not remove the ssd from that position, and error remained.

Answer 5

Hi JP. I'm Greg, 10 years awarded Windows MVP, here to help you.

What's on the hard drive you swapped in? Is it Windows and intended to boot, or a storage drive that you've taken precautions in BIOS to make sure won't interfere with the Boot tab prioirty order?

If you unplug the drive will it start? Go into BIOS Setup to take pictures of the Boot Priority order. Then power down and plug in the HDD, go back into BIOS and take more pictures of the Boot tab order. For the modern UEFI BIOS, WIndows Boot Manager should remain set first to boot at all times. Check if the hard drive has replaced it somehow, and if so, change it back.

For the older Legacy or CSM install (which you would have to have done yourself since it never comes from factory that way) the Windows hard drive should be set first to boot. Make sure it remains there after adding the storage drive.

If the new drive is meant to boot with Windows, is it installed in UEFI or Legacy Mode. If it's Legacy it won't boot until CSM or Legacy BIOS settings are enabled in addition to UEFI. You can take pictures of those expanded settings so I can guide you.

Based on the answers you post back I may have other suggestions.