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Question about CRC error during backup with Macrium Reflect, linked to unformatted drive?

Question about CRC error during backup with Macrium Reflect, linked to unformatted drive?

C
Chester007
Senior Member
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528
12-15-2021, 07:25 AM
#1
Hello everyone,
I'm currently running Windows 11 25H2 and attempting a system image backup of the C: drive with Macrium Reflect, saving it to the D: drive. Prior to upgrading, I faced no problems with this process. After the upgrade, Macrium Reflect began displaying a CRC error during backups. Initially, I thought it might be due to a bad sector on either the C: or D: drive. However, after running chkdsk on both drives, no issues were detected. I also checked with CrystalDiskInfo, which confirmed both drives were healthy with more than 90% health. To narrow down the cause, I tried backing up individual partitions one at a time. It turned out the partition named "2 - Unformatted Drive" was responsible for the error. Removing that partition resolved the problem, allowing the backup to finish without issues. After restoring from the backup image, the system worked perfectly.

I’m wondering if others have encountered similar problems with unformatted or hidden partitions causing CRC errors in Macrium Reflect on Windows 11 25H2? Do you know the underlying reason or the best way to fix it without excluding the partition?
Thanks in advance for your assistance!
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C
Chester007
12-15-2021, 07:25 AM #1

Hello everyone,
I'm currently running Windows 11 25H2 and attempting a system image backup of the C: drive with Macrium Reflect, saving it to the D: drive. Prior to upgrading, I faced no problems with this process. After the upgrade, Macrium Reflect began displaying a CRC error during backups. Initially, I thought it might be due to a bad sector on either the C: or D: drive. However, after running chkdsk on both drives, no issues were detected. I also checked with CrystalDiskInfo, which confirmed both drives were healthy with more than 90% health. To narrow down the cause, I tried backing up individual partitions one at a time. It turned out the partition named "2 - Unformatted Drive" was responsible for the error. Removing that partition resolved the problem, allowing the backup to finish without issues. After restoring from the backup image, the system worked perfectly.

I’m wondering if others have encountered similar problems with unformatted or hidden partitions causing CRC errors in Macrium Reflect on Windows 11 25H2? Do you know the underlying reason or the best way to fix it without excluding the partition?
Thanks in advance for your assistance!

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D
DRGNdragsYT
Senior Member
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723
12-15-2021, 02:53 PM
#2
use CristalDiskInfo to detect bad sectors
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D
DRGNdragsYT
12-15-2021, 02:53 PM #2

use CristalDiskInfo to detect bad sectors

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1
13_noy_31
Junior Member
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3
12-16-2021, 05:32 PM
#3
Sure, let me explain. You can use CrystalDiskInfo to look beyond the health status and check for bad sectors by examining its detailed information.
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1
13_noy_31
12-16-2021, 05:32 PM #3

Sure, let me explain. You can use CrystalDiskInfo to look beyond the health status and check for bad sectors by examining its detailed information.

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E
elvispat1
Member
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77
12-18-2021, 10:50 AM
#4
Open the tool and examine the data.
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E
elvispat1
12-18-2021, 10:50 AM #4

Open the tool and examine the data.

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D
Drakola_x
Junior Member
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15
12-20-2021, 08:12 AM
#5
Hello
@helpstar
I can verify that the health status of all three disks is above 90% and all indicators are displayed in a blue bubble.
Do you require any screenshots for troubleshooting?
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D
Drakola_x
12-20-2021, 08:12 AM #5

Hello
@helpstar
I can verify that the health status of all three disks is above 90% and all indicators are displayed in a blue bubble.
Do you require any screenshots for troubleshooting?

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T
TheDeath_Pro
Member
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128
12-20-2021, 03:01 PM
#6
16MB partition serves as a protective MBR partition.
Designed for GPT unaware tools (like fdisk in older DOS/Windows versions), it prevents the drive from being marked as empty.
With Windows 11, this protective MBR partition is no longer required.
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T
TheDeath_Pro
12-20-2021, 03:01 PM #6

16MB partition serves as a protective MBR partition.
Designed for GPT unaware tools (like fdisk in older DOS/Windows versions), it prevents the drive from being marked as empty.
With Windows 11, this protective MBR partition is no longer required.

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