Just checked mine after this update and the mic doesn't seem to be working. Tried with Sound Recorder and built in Web Cam, no noise.
I'm not sure if I've ever tried it before, HP laptop.
EDIT: just opened System>Sound>Properties and turned OFF "Audio Enhancements" was on "Device Default...
I haven't got the "Speed Test" on the network icon on the Taskbar but I have got it in the "Advanced Network Settings", don't know if it's always been there or not, never gone looking before.
And me, straight after the update everything ran clean, then when i cleaned up the component store after running "Dism /online /cleanup-image /analyzecomponentstore" which found 4 packages and then "Dism.exe /online /Cleanup-Image /StartComponentCleanup", both SFC and DISM had corruption and...