Last night keyboard was working fine, today I turned my PC on and I cannot type with my keyboard. Things i've noticed: - BlackWindow Chroma AND Mamba not showing in Synapse. - Device manager showing the "!" next to some keyboard and mouse devices. - Might of been a windows update. - Keyboard LEDs works - Keyboard works in BIOS - Keyboard works on other PCs Things i've done: - Restart PC (almost every time after i do one of the things below) - Changed USB ports - Update Synapse - Run Win10 updates - Tried updating drivers in device manager - Uninstalled Synapse + delete devices in device manager + delete all razer folders in c:\programfiles x86 and c:\programdata + restart PC + reinstall Synapse - Uninstall Windows 10 updates that installed in the last 24 hours. - Hold down esc + caps lk + m5 and plug in keyboard. Any help would be great. Let me know if i'm missing any information. Last second edit: - no keyboard i plug in work.... may not be a razer problem. But still going to post just in case someone can help.