Microsoft reiterates guidance on disabling 8.3 filenames in Windows 10 and Windows 11
According to IT Home, Neowin reported that Microsoft recently reiterated guidance to disable 8.3 filenames in Windows 10 and Windows 11. The guidance notes disabling 8.3 filenames can significantly improve performance for file-heavy operations, but may cause compatibility issues for applications or registry items that depend on this feature.
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Key facts
- 01Neowin published a blog post on September 25 about Microsoft's reiterated guidance regarding disabling 8.3 filenames in Windows 10 and Windows 11.
- 02To significantly improve performance for file-intensive operations, but may cause compatibility issues for software or registry items.
- 03On September 22 that enabling the 8.3 filename mechanism caused file browsing and copy delays on a fast M.2 SSD, and that disabling the feature and removing existing short names improved performance in flat view scrolling and file search.
- 04Dell Avamar backup software tests observed that enabling 8.3 filenames led to severe throughput drops when creating folders containing about 1.3 million files; disabling 8.3 filenames allowed more than 5 million files to be created within two to three hours.
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