手动调整Windows 10 Home的WinRE分区大小相关问题咨询

Hey there, let's walk through your questions about resizing the WinRE partition following Microsoft KB5028997—since you're just 1% unsure and want to double-check all details:

1. Where do I set the size in the procedure? #

You’ve got the right core idea, let’s nail down the exact math:
The shrink desired=250 command in the KB refers to the amount of space (in MB) you need to free up from your OS partition to expand WinRE. Since you want WinRE to end up at 1024MB (1GB) and your current WinRE is 522MB, you’ll need to free up 1024 - 522 = 502MB from the OS partition. So replace the 250 in the shrink command with 502 instead.

2. Will I lose OS partition data if the procedure goes well? #

Absolutely not—plenty of users have gone through this exact process without any data loss. As long as you follow the KB steps precisely, Windows' built-in diskpart tool handles the partition resize safely. It’s designed to avoid overwriting or deleting existing data on the OS partition when executed correctly.

3. What if the OS partition has data near the "end"? #

No need to panic about random files getting destroyed. When you run the shrink command, Windows first automatically moves any data stored near the end of the OS partition to available free space within the partition. Only after all those files are safely relocated does it shrink the partition to free up space for WinRE.

4. What happens if my OS partition is nearly full and I try to shrink it? #

If your OS partition is almost completely full (with barely any free space to move files around), the shrink command will fail. Windows needs enough temporary free space within the OS partition to relocate the end-of-partition files, so it can’t shrink the partition beyond the point where used data can’t be moved. In this case, you’ll need to free up some space first—like deleting unused files, emptying the Recycle Bin, or moving large files to another drive—before trying the resize again.

Just to circle back to your original reason: once you expand WinRE to 1GB, you should have no issues installing KB5034441 (included in KB5034203) since the WinRE size requirement will be met. And since you’re sticking to Windows' native tools, you don’t have to worry about third-party partition software risks.

备注：内容来源于stack exchange，提问作者Invariant