Microsoft Solitaire is a free collection of card video games including Klondike, Spider, FreeCell, Pyramid, and more. It comes pre-installed with Windows 10 and was developed by Next Level Games through Microsoft Casual Games. Windows 10 users can play these card games during free periods. Now some users are experiencing problems playing solitaire, indicating Internet connectivity issues. If you are one of those affected, make sure you have completely fixed the Microsoft Solitaire error code 124 on your Windows 10 system.