Dual boot and partition move/resize scenario

Question

I have a dual boot SSD, with a 150 GB legacy Windows 10 partition and a 250 GB Windows 11 partition, followed by a 0.7 GB recovery partition and subsequently a 500 GB data partition.

Is there a way to remove (or shrink) the dual boot and Windows 10 partition, then enlarge (extend backwards) the Windows 11 partition, with Windows built-in tools only ?

After a few tests, it seems that when I use the legacy (Windows7) backup/recovery tool to create a system disk, there is no way to restore just the Windows 11 backup into a newly recreated (larger) partition; when I attempt to restore, both Windows 10 and Windows 11 partitions get restored into their originally sized partitions...

Answer 1

Windows has very limited partitioning ability, it can only extend a partition into a space that is directly to the right of the partition, if you shrink the Windows 10 partition, then the resulting space would be to the left of the Windows 11 partition and so, Windows cannot extend into that space, you would need to use a 3rd party partitioning utility like the free version of AOMEI Partition Assistant to perform that job.

Answer 2

To resize your partitions in a dual boot setup using Windows built-in tools, you can use the Disk Management utility. Here’s a general approach:

1. Backup Your Data: Before making any changes to partitions, ensure you back up important data to avoid loss.
2. Access Disk Management: Right-click on the Start button and select Disk Management.
3. Shrink the Windows 10 Partition: Right-click on the Windows 10 partition and select Shrink Volume. Enter the amount of space you want to free up. This will create unallocated space.
4. Extend the Windows 11 Partition: Right-click on the Windows 11 partition and select Extend Volume. Follow the prompts to use the unallocated space you just created.
5. Recovery Partition: Ensure that the recovery partition remains intact, as it is essential for recovery options.
6. Final Steps: After resizing, check that both operating systems boot correctly. You may need to adjust your boot settings if necessary.

Note that Windows built-in tools may not allow you to extend a partition backward directly if the unallocated space is not adjacent to the partition you want to extend. In such cases, third-party partition management tools may be required.

Regarding the issue with the legacy backup tool, it typically restores partitions to their original sizes. For more flexibility, consider using a backup solution that allows for individual partition restoration or resizing during the restore process.

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References:

• Hard drives and partitions
• Windows Recovery Environment (Windows RE)