I have a two hard-drive setup, let's say X and Y, X older than the other. My Windows installation was on X. After noticing the X hard drive started failing I decided to backup everything on Y and reinstall the system on it.

After backing everything up I deleted the system partitions on drive X, leaving around 64 gigs of unallocated space and installed Windows on drive Y.

Upon removing the failing hard drive from the system, Windows refused to boot. Upon further inspection I realized that Windows installed itself on drive Y, but it also made the 100MB partition the old, failing drive.

How can I get a working system with everything on drive Y after removing drive X without reinstalling Windows?

  • Physically remove the failing drive before reinstalling? – DavidPostill Oct 21 '15 at 18:19
  • The idea is I don't want to reinstall. Missed that in the question. Edited. – Dumitru Oct 21 '15 at 18:24
  • What was in the partition on drive X? Was it the system reserved partition? That is 100MB on Windows 7. If so see What is the System Reserved Partition and Can You Delete It? – DavidPostill Oct 21 '15 at 18:30
  • "To delete the System Reserved partition, you’d first have to move the boot files from the System Reserved partition onto the main Windows system drive. This is harder than it sounds. It will involve messing with the registry, copying various files between drives, updating the BCD store, and making the main system drive the active partition. " – DavidPostill Oct 21 '15 at 18:30
  • "This may be possible, and you’ll find some guides walking you through the process on the web. However, it’s not officially supported by Microsoft and we don’t recommend it. " – DavidPostill Oct 21 '15 at 18:31

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