More dashcam issues. Apparently the 128 gb USB drive supplied with my MS stopped working again today. Installed the drive on my PC and found it was formatted to 64 gb with no free space. No drive errors found. A reformat was attempted and the drive remained at 64gb (half capacity). Returning to the vehicle I learned that the drive was reserving 64 gb for Steam files. I had never invoked this option; somehow it defaulted to this on a recent update. Unchecked the Steam option to restore the full drive capacity. Just wanted to share this with the TMC community, if you find your dashcam drive keeps failing.