This update resolves a keyboard safe-mode issue.
How to get this update
This update will be downloaded and installed automatically. It will be listed in the Windows Update history as follows:
Surface driver update for Surface System Aggregator
There are no prerequisites for installing this update.
You have to restart the computer after you apply this update.
Update replacement information
This update doesn't replace a previously released update.
Surface System Aggregator – Firmware (135.1704.1.0)
Learn about theterminology that Microsoft uses to describe software updates.