Review on Rybozen KVM Switch HDMI 2 Port Box with USB and HDMI, Share Keyboard Mouse Printer and HD Monitor, Support 4K HUD (3840x2160), includes 2 HDMI and 2 USB Cables by Jesse Stewart

I installed my two PCs according to the instructions that came with them. This caused total chaos! It sent my only computer to 'chkdsk' twice and reset all my programs to default or even new install status. It took me hours to reinstall programs and even repair the user and administrator account settings on my new Windows computer. The root of the problem seems to be that two computers are not simply using the same keyboard, mouse and monitor; This allowed two computers to share information with each other without restriction. This caused a lot of uproar in two separate operating systems. NOT RECOMMENDED for occasional or inexperienced computer users.