VirtualBox - How to solve VERR_CPUM_INCOMPATIBLE_XSAVE_COMP_MASK error

1. Right click the VM in the manager and click "Discard Saved State ...".

2. Run the VM.

VMWare - How to solve "This virtual machine appears to be in use" error

If you are certain that the guest is truly not running, go to the guest's folder and delete any .lck files and folders.

You can identify the configuration file by looking at the Summary view of the virtual machine.

VMWare - How to solve "The VMware Authorization Service is not running" error

Error message:

Error while powering on: VMware Player cannot connect to the virtual machine. Make sure you have rights to run the program, access all directories the program uses, and access all directories for temporary files.

The VMware Authorization Service is not running.

Follow this steps:

1. Click Start and on the search box type services.msc and click OK.
2. Locate that the VMware Authorization service and start the service