For those using virtualizor on Virtualizor software

If you face issues while installing windows and dont see disk

Go to edit VPS

Select Disk

Select Disk driver set to none

Which you can see in below image and reboot VPS

Disk will be visible

If you are getting logged out repetedly from WHM

Go to

Home /
Server Configuration /
Tweak Settings

From there in security section check on Cookie IP validation

By defaut its set to strict.

Enable loose option and save.

This should fix this issue