Folks, my System is based on VMware Workstation I hope you help.When I issue isolation command to go to the Multiuser.Target it gives me this output.

 
[root@VMwarer system]# systemctl isolate multiuser.target
Failed to start multiuser.target: Operation refused, unit may not be isolated.

CCDP/CCIEx2(R&S|SP|UCS), JNCIE, VCAPx3 (DCV|NSX|DT) and a Linux Newbie

What is multiuser.target? Is it a custom target you've created, or do you mean "multi-user.target" (note the hyphen)?

If it's the former, please show us how you have configured it.

Sakura:-
Mobo: MSI MAG X570S TORPEDO MAX // Processor: AMD Ryzen 9 5950X @4.9GHz // GFX: AMD Radeon RX 5700 XT // RAM: 32GB (4x 8GB) Corsair DDR4 (@ 3000MHz) // Storage: 1x 3TB HDD, 6x 1TB SSD, 2x 120GB SSD, 1x 275GB M2 SSD

Making lemonade from lemons since 2015.

I must be punished I didn't notice the hyphen.Many thanks to you WorMzy

CCDP/CCIEx2(R&S|SP|UCS), JNCIE, VCAPx3 (DCV|NSX|DT) and a Linux Newbie