Microsoft admits Windows 11 failure affects NVMe SSD performance, has released optional updates to fix

Earlier, we mentioned that some users found that the performance of Windows 11 solid-state hard drives had declined. Compared with Windows 10, they found that the read and write speed of hard drives had dropped significantly.

After testing, many users found that NVMe is affected more obviously. It is worth noting that users have discovered this problem before Windows 11 was released.

Unfortunately, the feedback from the users at that time did not attract the attention of Microsoft. It was not until this time that there was more feedback from netizens that it attracted the attention of Microsoft’s file system engineers.

Windows 10 vs Windows 11

After investigation, Microsoft confirmed that due to some failures, all hard drives on Windows 11 have performance degradation, including but not limited to NVMe solid-state drives.

After investigation, Microsoft found that Windows 11 will perform some unnecessary operations every time a write operation is performed, which causes performance problems in hard disks and other devices.

And it is not just the NVMe solid-state drives that users have found that are affected, such as SATA solid-state drives and SATA mechanical hard drives have also experienced performance declines.

However, performance problems only occur when the NTFS USN log is enabled, and the NTFS USN log is always enabled on the system disk, C drive, by default.

Microsoft has fixed this issue in the previously released optional update KB5007262, and if the test is no problem, a stable version update will be released later.

Microsoft writes:

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.

Via: WindowsLatest