Pcworld iconPcworldSep 23, 2026 ~1 min source read

Windows 11’s optional September update tries to fix Bluetooth again

Microsoft has released September's optional Windows update, known as KB5124010 for Windows 11 25H2 and 24H2. It significantly improves the Bluetooth functionality of Windows 11 and optimizes File Explorer, plus adds a few minor features here and there.

Windows 11’s optional September update tries to fix Bluetooth again
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Microsoft has released September's optional Windows update, known as KB5124010 for Windows 11 25H2 and 24H2.

It significantly improves the Bluetooth functionality of Windows 11 and optimizes File Explorer, plus adds a few minor features here and there.

Bluetooth remains a perennial issue with Windows 11, which Microsoft has been trying to address for months.

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The useful part

Microsoft has released September's optional Windows update, known as KB5124010 for Windows 11 25H2 and 24H2. It significantly improves the Bluetooth functionality of Windows 11 and optimizes File Explorer, plus adds a few minor features here and there. Bluetooth remains a perennial issue with Windows 11, which Microsoft has been trying to address for months.

How it works

  • File Explorer also automatically displays a preview of all downloaded files again (with the exception of HTML files, for which there is a "Preview" button).
  • Emoji fans will like that KB5124010 rolls out the Emoji 17.0 set for Windows 11, allowing you to use a number of new emojis, such as the distorted face, the ballet dancer, the fight cloud, and the hairy...

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