BTC M850 Driver Download (Official)

16 Ratings (see all reviews)

Supported Models

M850 Driver

M850C Driver

M850U Driver

M851C Driver

M860 Driver

M860C Driver

M860U Driver

M871 Driver

M871C Driver

M871U Driver




Supported Operating Systems

Windows XP, Windows 2000, Windows NT4, Windows ME, Windows 98, Windows 95

File Name (1.2 MB)


V2.0.1-98CA MUL (24-Jul-2003)

Find Related Drivers

Uploader Notes

Mouse Driver

Uploaded By

Vinod (DG Staff Member) on 17-Aug-2004

Ratings & Reviews

See all BTC M850 ratings and reviews

Driver Contents File List

The following files are found inside the driver download file.

Name Size Date
BCMOUSE.VXD 11.8 KB 14 Jun 2002
SETUP.DLL 197.4 KB 3 Sep 2001
LwbHMSys.sys 54.4 KB 7 May 2000
SETUP.DSC 4.9 KB 24 Jul 2003
Setup.exe 222.2 KB 13 Feb 2003
BC8042I.sys 33.3 KB 29 Apr 2002
data.z 720.9 KB 24 Jul 2003
bcmouse.inf 4.1 KB 10 Jul 2001

How to Update M850 Device Drivers Quickly & Easily

Step 1 - Download Your Driver

To get the M850 driver, click the green download button above. After you complete your download, move on to Step 2.

If the driver listed is not the right version or operating system, search our driver archive for the correct version. Enter M850 into the search box above and then submit. In the results, choose the best match for your PC and operating system.

Tech Tip: If you are having trouble deciding which is the right driver, try the Driver Update Utility for M850. It is a software utility which automatically finds and downloads the right driver.

Step 2 - Install Your Driver

Once you have downloaded your new driver, you'll need to install it. In Windows, use a built-in utility called Device Manager, which allows you to see all of the devices recognized by your system, and the drivers associated with them.

How to Open Device Manager

  • In Windows 10 & Windows 8.1, right-click the Start menu and select Device Manager

  • In Windows 8, swipe up from the bottom, or right-click anywhere on the desktop and choose "All Apps" -> swipe or scroll right and choose "Control Panel" (under Windows System section) -> Hardware and Sound -> Device Manager

  • In Windows 7, click Start -> Control Panel -> Hardware and Sound -> Device Manager

  • In Windows Vista, click Start -> Control Panel -> System and Maintenance -> Device Manager

  • In Windows XP, click Start -> Control Panel -> Performance and Maintenance -> System -> Hardware tab -> Device Manager button

How to Install a driver from Device Manager

  1. Locate the device and model that is having the issue and double-click on it to open the Properties dialog box.

  2. Select the Driver tab.

  3. Click the Update Driver button and follow the instructions.

In most cases, you will need to reboot your computer in order for the driver update to take effect.

Tech Tip: Driver downloads and updates come in a variety of file formats with different file extensions. For example, you may have downloaded an EXE, INF, ZIP, or SYS file. Each file type has a slighty different installation procedure to follow.

For more help, visit our Driver Support Page for step-by-step videos on how to install drivers for every file type.

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