Tag: virtual machine

Problem convert computer to VM

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How to convert windows computer to VM (virtual machine)

In our example we turned off the windows firewall on the target computer, I am not sure if you need to do that.


If you get message Can’t connect to C$, ADMIN$

Add this register value to target computers register
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System

Create a DWORD value called LocalAccountTokenFilterPolicy and assign it a value of 1.
Permission to perform this operation was denied




If you get message Permission to perform this operation was denied

Start Local Security Policy
Security Settings Local Policy Security Options User Account Control: Run All…
Change it

How to give more space to a VM machine

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How do you exspand harddisk in Windows VM?


How to give more space to a VM machine?

  1. Startup vSphere Client with admin and look for the server you need to give it a bigger disk
  • Now login with RDP on that machine and go to the server manager.
    Storage Disk Management, now you can see all the disk,
    Compare so it’s right with information to go you get in vSphere
  • When you have found the correct one, you change the size click OK
    IMPORTANT: never decrease a Size or else you can break the VM.
    So it     increases many times to avoid that.

  • Now you go back to Server Manager on the server and press F5 and you can see the new space.

  • Click on the disk and pick extend make sure it picks the new extra space and then next, next finished.

Reboot vSphere VCenter Host

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Login on vSphere Client against your vSphere host

Look for your host machine


Then go to Summary and check Host: (ESXi IP)

Now start a new vSphere session (on the same machine or on another) to reach that IP login on that ESXi host.

When you are in, look for host machine again what should found somewhere on this host.

When you found it

There is two ways to go now
1. right-click and pick guest reboot (a simple reboot might not be good options).

2. Open Console on that machine, Press F12
Then Press again F12, now you probably need to log in with a root account.

After having login with the root account.
Press F11 reboot