Hello,
when I open any project unity is all pink. Not only Materials/shader but the whole interface. It’s like that in every version. Help is greatly appreciated!
That’s odd. Could you check if your system meets minimum requirements for running Unity(Unity - Manual: System requirements for Unity 2019.1)?
If it does, could you submit a report for our QA to look into(Top menu → Help → Report a Bug…). They will have access to editor logs and hopefully be able to diagnose the problem with precision.