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Realtek Semiconductor Corp. - Bluetooth - 1.9.1040.4003 Driver 1.9.1040.4003

by Realtek8.1832-bitSHA-256 verified

Manufacturer
Realtek
Device
Realtek Semiconductor Corp. - Bluetooth - 1.9.1040.4003
Driver version
1.9.1040.4003
Release date
February 21, 2022
Supported Windows
Windows 8.1, Windows 8
Architecture
32-bit (x86)
File size
278 KB
File name
22765cac-192a-40be-a4dc-17edb26e4b98_da31af4ab117907f8850d79b66554cad62f79c2d.cab
Digital signature
Signed - catalog RtkFilter.cat
INF version
02/21/2022,1.9.1040.4003
INF provider
Realtek Semiconductor Corp.
Device class
Bluetooth
Source
Microsoft Update Catalog
Last verified
July 8, 2026
SHA-256
91efc65cc899aad514c9886b4fab6f83c6ee64d1f8fc255cfd9f0f50ff6982cb

Supported hardware IDs (13)

Compare with your device: Device Manager → right-click the device → Properties → Details → Hardware Ids. If one of the values above matches, this driver supports your hardware.

How to install

  1. Create a restore point(Start → "Create a restore point" → Create), so you can roll back if anything goes wrong.
  2. Verify compatibility: your Windows version (Windows 8.1, Windows 8) and architecture (x86)must match this driver, and your device's Hardware ID should appear in the list above.
  3. Download the file using the button - it comes directly from Microsoft Update Catalog.
  4. Optionally verify the checksum: open PowerShell, run Get-FileHash your-download.cab -Algorithm SHA256 and compare with the SHA-256 above.
  5. Extract the .cab archive: right-click → Extract All, or run expand -F:* file.cab C:\driver\ in Command Prompt.
  6. Install via Device Manager: right-click your device → Update driver → Browse my computer → point to the extracted folder. Alternatively run pnputil /add-driver C:\driver\*.inf /install.
  7. Check Device Manager: the device should show no warning icons, and the driver version should match.

How to roll back

If the device stops working after the update: Device Manager → right-click the device → Properties → Driver tab → Roll Back Driver. If the button is greyed out, use the restore point from step 1 (Start → "Recovery" → Open System Restore).