Win10 1809 Driver installer takes ages to start.
 

Hey,
I've been installing this driver for long and I've noticed that on occasion the driver will fail and stop working.
The required fix usually is just a normal reinstallation of the driver however after starting the installation process it appears in the task manager but will take up to 10min for the installation GUI to appear.

Is this a known bug?
This is on Lenovo t47/80 and x27/80 models. Thanks.