Issue

Changes made to Microsoft Family children accounts on https://account.microsoft.com/family are not applied to Windows 10 PC.
After logging in to the PC with a parent's account I found following message in Settings > Accounts > Family and other users.

We can't connect to Microsoft family at the moment, so your family on this device might not be up to date.

Read more: Windows 10 - We can't connect to Microsoft family at the moment...

There are few different ways you can move installed games from one hard drive to another without having to re-download them. The method I used involves manually moving the game folder to a new location and then creating NTFS Directory Junction to trick U-Play into thinking the game is still in its old location. I used this to move U-Play game Assassin's Creed Syndicate, but the same method should work with Steam, Origin and other games.

Read more: Move U-Play game to another hard drive

My MP4Box GUI is a tool I normally use to combine individual video and audio tracks (h264, aac, etc.) into a valid mp4 file. My MP4Box GUI is just a GUI wrapper for a free command line utility called MP4Box.

Usage is very simple - add all tracks into the main application window and click Mux button...

mkvextract.exe is a command-line tool that is part of MKVToolNix. mkvextract v8.3.0 can be downloaded from here. It allows to extract subtitles, audio, and other type of tracks from .mkv files.

Syntax is pretty simple:

mkvextract.exe tracks "D:\video.mkv" 1:"D:\track-1.aac"

Where:
D:\vide.mkv - Source file
1 - Track number ID
D:\track-1.aac - Destination file

mkvextract manual can be found here.

If you prefer to work with graphical interface, you can download a GUI add-on from here: https://sourceforge.net/projects/gmkvextractgui/