Strange red line in Macrium Reflect

p5200 · Jul 8, 2025

Anyone know why this partition is showing in red?

BamaInArk · Jul 8, 2025

It's the Recovery partition and is showing almost full. I'm not sure how MR determines what is considered full however. You can use a Utility like Minitool Partition Wizard to resize it a make it larger.

p5200 · Jul 8, 2025

What does it store in that partition?

SoFine409 · Jul 8, 2025

p5200 said:
What does it store in that partition?

The Windows recovery partition contains the Windows Recovery Environment (WinRE) and files needed to restore your operating system to its factory settings or troubleshoot startup issues. It's a separate partition on your hard drive, distinct from your main Windows partition.

Here's a more detailed breakdown:

Windows Recovery Environment (WinRE):
.
This is a special environment that provides tools for diagnosing and fixing problems with your Windows installation.
System Restore files:
.
These files allow you to revert your system to a previous state, potentially undoing changes that are causing problems.
Factory Image:
.
In some cases, the recovery partition may contain a compressed image of the original operating system as it was when you first purchased the computer. This allows you to restore your system to its original state.
Drivers and other necessary files:
.
The recovery partition may also include drivers for your hardware and other files needed for a clean reinstallation of Windows.

Why is it important?

Troubleshooting:
The recovery partition is crucial for troubleshooting startup issues, repairing corrupted files, and restoring your system to a working state.
System Reset:
It provides a way to reset your PC to its factory settings, which can be helpful when you're having major problems with your operating system.
Boot Issues:
If your computer is unable to boot into Windows, the recovery partition can provide access to tools that may help you resolve the problem.

What happens if it's deleted?

Loss of recovery options:
Deleting the recovery partition means you lose the ability to restore your system to its original state using the built-in recovery tools.
Troubleshooting difficulties:
Troubleshooting startup issues and repairing corrupted files may become more difficult.
Inability to reset to factory settings:
You may not be able to reset your PC to its original state if you encounter major problems.

In summary, the recovery partition is a valuable part of your Windows installation that provides tools and files for troubleshooting and restoring your system. It's generally recommended to keep it intact, as its deletion can lead to significant limitations if you encounter problems with your operating system

p5200 · Jul 8, 2025

I used MinniTool Partition and extended it. Thanks for the help folks!

BamaInArk · Jul 12, 2025

Funny thing about this post. It appears to be happening to several of my Win11 systems running the last free version of MR. Also my daily driver running Macrium Home v8. There was an issue with Win10 many months ago about this specific oddity. I run multiple systems both with Win10 and Win11. Generally speaking the Win11 systems did not have this issue as it seems it was only Win10. I ran Minitool Partition Wizard on all those Win10 machines to increase the size of the RE partition.
Now my Daily Driver, which is a fairly new build, is now showing the same RED on the RE partition. And also multiple other Win11 systems are doing the same thing.

PerpetualCycle · Jul 12, 2025

BamaInArk said:
Funny thing about this post. It appears to be happening to several of my Win11 systems running the last free version of MR. Also my daily driver running Macrium Home v8. There was an issue with Win10 many months ago about this specific oddity. I run multiple systems both with Win10 and Win11. Generally speaking the Win11 systems did not have this issue as it seems it was only Win10. I ran Minitool Partition Wizard on all those Win10 machines to increase the size of the RE partition.
Now my Daily Driver, which is a fairly new build, is now showing the same RED on the RE partition. And also multiple other Win11 systems are doing the same thing.

WinRE,wim in the partition gets updated every new Windows update, and the file tends to grow in size over time. Perhaps your has grown in size past the threshold that Macrium has set to flag with red that the partition is near full.

I believe WIndows used to automatically increase the size of this partition by reducing the size of the C: partition. They no longer do this,

BamaInArk · Jul 12, 2025

PerpetualCycle said:
WinRE,wim in the partition gets updated every new Windows update, and the file tends to grow in size over time. Perhaps your has grown in size past the threshold that Macrium has set to flag with red that the partition is near full.

I believe WIndows used to automatically increase the size of this partition by reducing the size of the C: partition. They no longer do this,

Yeah I get all that but as I mentioned I just built this system only a few months ago so it has a fresh install so only a few months worth of updates from MS. The default RE partition on this drive was 644.0 MBs showing 580.0 used. So I'd imagine many others using default Win11 partitions and MR might be similarly RED. Not sure how Macrium X is handling this.
Just look at all the "Similar threads" being displayed from the previous problem.

OppfinnarJocke · Nov 8, 2025

p5200 said:
Anyone know why this partition is showing in red?

I have just now this same issue, Macrium Reflect Free shows the recovery partition as almost full, saying that 628.6 MB is used out of 696.0 MB. At the same time, W11's built-in Disk Management tool (inside Computer Management) shows the recovery partition as 100% free!

Does anyone know what is going on here?
Is it a Schrödinger type of thing, both full and empty at the same time?

// Jocke

Bree · Nov 8, 2025

OppfinnarJocke said:
Macrium Reflect Free shows the recovery partition as almost full, saying that 628.6 MB is used out of 696.0 MB. At the same time, W11's built-in Disk Management tool (inside Computer Management) shows the recovery partition as 100% free!

....Is it a Schrödinger type of thing, both full and empty at the same time?

No, it's a permissions type of thing.

When you run Disk Management it is running with User level permissions, it doesn't have sufficient permission to see what is in the recovery partition.

Remember the UAC prompt when you start Reflect? By clicking 'Yes' you are allowing it to run at the highest permission level.

Strange red line in Macrium Reflect

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