vmware converter permission to perform this operation was denied

User Account Control: Run all administrators in Admin Approval Mode

This affects how UAR works and can block remote local admin connections.
This can be changed in Local Computer Policy | Computer Configuration | Windows Settings | Security Settings | Local Policies | Security Options
Set it to Disabled, requires a reboot

 

2018-09-07 13_16_33-XenCenter.png

 

found here

https://www.jonathanmedd.net/2013/12/vmware-converter-permission-to-perform-this-operation-was-denied.html