DriverCove

Realtek Bluetooth 4.0 Module Driver 2.3.36.3

by Realtek

This release in brief

  • One of 2 releases of this driver; the newest, 2.3.36.2 from May 2015, is listed below.

What you are downloading

This file comes straight from Microsoft's own download server - the same one Windows Update uses. We do not host it, repack it or change it in any way - the download button takes you to the manufacturer's server, not to a file of ours.

Package
20736040_61494cf3a5d00fac3a168ca51638af6a790500ab.cab, 117 KB
Published by
Realtek Semiconductor Corp.
Digitally signed
Windows checks this signature before installing
Inside
12 files - the driver itself, its setup instructions, a digital signature file and supporting libraries
Show the full list
  • RtkBtfilter.sys64 KB
  • Rtkfilter.inf5 KB
  • rscfilter.cat13 KB
  • RtkBtfilter.sys64 KB
  • Rtkfilter.inf3 KB
  • rlt8723a_chip_bt40_fw_asic_rom_patch.dll37 KB
  • rscfilter.cat14 KB
  • rtl8723b_mp_chip_bt40_fw_asic_rom_patch_new.dll48 KB
  • rtl8821a_mp_chip_bt40_fw_asic_rom_patch_new.dll40 KB
  • RtkBtfilter.sys64 KB
  • Rtkfilter.inf2 KB
  • rscfilter.cat13 KB

Nothing happens on its own: you download the file and decide yourself whether to install it.

Manufacturer
Realtek
Device
6 devices - see the list below
Driver version
2.3.36.3
Release date
May 21, 2015
Supported Windows
Windows 10
Architecture
64-bit (x64)
File size
117 KB
File name
20736040_61494cf3a5d00fac3a168ca51638af6a790500ab.cab
Digital signature
Signed - catalog RsCFilter.cat
INF version
05/21/2015,2.3.36.3
INF provider
Realtek Semiconductor Corp.
Device class
BLUETOOTH
Source
Microsoft Update Catalog
Last verified
July 7, 2026
SHA-256
fec9b8a5c98ccaccdba36b9b7c6b44aa8ceadd11ba27897eb432c7ac89079117

Supported devices (6)

Supported hardware IDs (39)

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

Before you start: create a restore point (Start → type "Create a restore point" → Create). It takes a minute and lets you undo everything if the new driver turns out worse than the old one. This driver is made for Windows 10 (64-bit) - if your Windows is different, look for another version further down the page.

This driver comes as a .cab file. Double-clicking it will not install anything - Windows only shows you what is inside. Install it through Device Manager instead:

  1. Right-click the downloaded file → Extract All → choose a folder you will not lose (the Desktop is fine) → Extract.
  2. Hold the Windows key and press X, then open Device Manager.
  3. Find the device that is not working - it usually has a yellow triangle, or sits under "Other devices" with a name like "Network controller".
  4. Right-click it → Update driver→ "Browse my computer for drivers".
  5. Click Browse, choose the folder you extracted into, tick Include subfolders, then Next.
  6. Windows finds the driver in that folder and installs it. Restart the computer afterwards.

If Windows answers "The best drivers for your device are already installed" - that does not mean your driver is fine, only that Windows prefers its own version. In the same window choose "Let me pick from a list of available drivers" → "Have Disk" → Browse → point to the file ending in .inf inside the extracted folder → OK.

Check it worked: open Device Manager again. The device should no longer show a warning icon, and its driver version should match the one on this page.

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 that button is greyed out, use the restore point you made before installing (Start → "Recovery" → Open System Restore).

Other versions of this driver

VersionReleasedSource
2.3.36.2May 21, 2015Microsoft Update Catalog

If the device still does not work

More Realtek bluetooth drivers