How to merge two partitions in windows 11/10 without losing data?

As far as i know, Windows Disk Management is pretty limited if you are going to merge two partitions without losing data—unless you use third-party tools, you can only merge neighboring partitions. Trying to merge non-adjacent ones without the right software will just give you errors or refuse to work. If your partitions aren’t next to each other, plan to move or delete partitions first.

It sounds obvious, but double-check which partition you're deleting. Accidentally deleting your C: drive or system partition can be disastrous. Take your time and verify which partition is which. Avoid merging system or recovery partitions unless you really know what you're doing. These are often critical for Windows recovery, and messing with them can make your system unbootable.

If you are going to merge two partitions without losing data on Windows computer. Please make sure no files or programs are running from the partition you're deleting or shrinking. Close everything first, or Windows might block the operation. If you’re using third-party tools, read their instructions carefully. Some tools might have quirks or limitations, like not supporting certain file systems or partition sizes. In my experience, taking your time, backing up, and double-checking before hitting "delete" or "extend" saves a lot of headaches later. Merging is powerful but can turn into a disaster if you're careless.