I recently updated my graphics card from Vega 56 to Vega 64 and since doing so I am now unable to open the Radeon tools.
After removing the Vega56 I booted using my onboard graphics in safe mode and used Display Driver Uninstaller to remove the Vega 56 drivers.
Installed the Vega 64 and then installed the latest 19.1.1 drivers and everything appeared to go as normal.
When I rebooted I have the Radeon icon in the bottom right of the task bar but as soon as I try to open this the icon disappears and nothing else happens.
I have tried reinstalling many times but nothing seems to have any affect.
System Restore is disabled so I cannot role back the system and at this stage the only option I can think of is a complete fresh install which I only want to do as a last resort.
Try a clean install of 19.1.2 ?
Radeon™ Software Adrenalin 2019 Edition 19.1.2 Release Notes