I'm using Windows 11, and my drive is laid out roughly like this: D: 30 GB, followed by 240 GB of unallocated space, then a FAT32 partition and another partition, with the 190 GB C: partition farther to the right. The 240 GB became unallocated after I shrank D: using MiniTool Partition Wizard. I'd like to add that space to C:. Can I move the intervening partitions and then expand C: with the same software, or could doing so cause data loss or boot problems?
2 Answers
The unallocated space has to be directly adjacent to the partition you want to expand. Windows Disk Management can only extend C: into unallocated space immediately to its right, so it cannot use this space as the drive is currently arranged. A partition manager may be able to move the FAT32 and other partitions out of the way, then expand C:, but moving partitions is a higher-risk operation. Make a verified backup or disk image first, keep the computer connected to reliable power, and don’t interrupt the process. Also confirm that the partitions being moved aren’t required boot or recovery partitions before changing them.
Yes, assuming the layout shown is accurate. The exact order and direction depend on the partition tool, so review its pending operations carefully before applying them. If the data is important, restoring from a backup to a freshly arranged disk is safer than relying on a large in-place move.
For another SSD used only for storage, the same rule applies: the free space must be next to the partition you want to enlarge. You can usually move or delete intervening partitions with a suitable partition utility, but make sure you have backups and verify that none of those partitions contain data you still need. If the drive is only a storage disk, there are fewer boot-related concerns, but an interrupted partition move can still corrupt files.
That second drive also has recovery-related partitions in the middle, but it isn’t used to boot Windows. Does that make merging safer?
It removes some bootloader concerns, but it doesn’t remove the risk of data loss. Recovery partitions may still be useful, so preserve them unless you’re certain they’re unnecessary and have a separate recovery method.
So the general procedure would be to back everything up, move the partitions between the unallocated space and C: toward the left, and then extend C: into the now-adjacent space?