Update for the Surface Pro 4 CoSAR driver


A driver update is available to improve the performance and stability of Surface Pro 4 devices. This update adds support for additional Wi-Fi signal algorithms, which can improve signal strength on some 5-GHz networks.

For more information about the Surface Pro 4 update history, see Surface Pro 4 update history.

How to get this update

This update will be downloaded and installed automatically.


There are no prerequisites for installing this update.

Restart information

You may be prompted to restart the computer after you apply this update.

Update replacement information

This update doesn't replace a previously released update.

File version information

Surface CoSAR driver (v1.0.47.0)


Learn about the terminology that Microsoft uses to describe software updates.

Article ID: 3151131 - Last Review: Apr 26, 2016 - Revision: 1