Microsoft’s Windows 11 NVMe SSDs repair program has no practical effect

Earlier, some users found that the same NVMe SSD performs better on Windows 10 than on Windows 11, including faster read and write speeds.

Based on user feedback, the engineers of the Microsoft file system team paid attention to this issue, and then Microsoft issued an official announcement stating that there was indeed a performance-affecting error.

In order to fix the problem, Microsoft released optional update KB5007262, Microsoft stated in the log to solve the performance impact caused by the NTFS USN log.

However, after testing by Neowin, it was found that this update did not solve the problem, and the random write performance of the same NVMe SSD still dropped significantly after testing.

Windows 10 vs Windows 11

The fix is ​​in the previous optional update KB5007262, and Microsoft usually adds the modification date when modifying the log, but this time it did not change the date.

Moreover, Microsoft adjusted the update log again last night, and the content of the changes is no different, but a more detailed explanation of the problem is easy for users to understand.

The previous version of the changelog stated:

Addresses an issue that affects NTFS when you enable the update sequence number (USN) journal. NTFS performs unnecessary actions each time it performs a write operation, which affects I/O performance.

The currently updated new log states:

Addresses an issue that affects the performance of all disks (NVMe, SSD, hardisk) on Windows 11 by performing unnecessary actions each time a write operation occurs. This issue occurs only when the NTFS USN journal is enabled. Note, the USN journal is always enabled on the C: disk.

Including NVMe, SSD, and mechanical hard drives. This problem only occurs when NTFS USN logging is enabled. Please note that USN logging is always enabled on the C drive.

After the modification, users can understand that the problem affects the performance of all disks. After all, users may not understand what terms such as NTFS USN represent.

This optional update after installing the update according to Microsoft’s instructions can solve the problem, but after testing, Neowin found that there is no difference in the performance of the same hard drive.

This means that the actual performance of this hard drive is still worse on the Windows 10 system. The solid-state drive used in the test is Western Digital’s NVMe SN520.