This article address some common problems/caveats when using WSL as your daily development environment.
EFI System Partition (ESP) often got corrupted for whatever reason.
Standard grub-install from Live CD gives “error: failed to get canonical path of /cow”
Here is a quick and easy way to repair it.
Symptom: After fresh installation of Ubuntu 12.04/14.04 Desktop, microphone on rear pink jack not working.
No sound input for Skype or Sound Recorder.