Refresh the environment variables in the Windows Command Prompt and PowerShell window

When the Windows Command Prompt and PowerShell windows open, they read the environment variables from the registry. If another process changes the value of an environment variable or creates a new one, the already open windows don’t reflect those changes. To reload the environment variables into open Command Prompt and PowerShell windows execute refreshenv

Install Git on Windows

If you use two-factor authentication see Create a Personal Access Token to use it as password in the command line tools at Switching to 2-factor authentication in GitHub Navigate to to download Git for Windows. The page automatically downloads the installer for the operating system you use. Install the application Accept the default values, including these: Make […]

Install Chocolatey

The Chocolatey home page is at Install Chocolatey Navigate to the Chocolatey website at and follow the latest instructions. At the time of writing the instructions were Using the Command prompt Open a command prompt as Administrator, Install Chocolatey with the command @”%SystemRoot%\System32\WindowsPowerShell\v1.0\powershell.exe” -NoProfile -InputFormat None -ExecutionPolicy Bypass -Command “iex ((New-Object System.Net.WebClient).DownloadString(‘’))” && SET “PATH=%PATH%;%ALLUSERSPROFILE%\chocolatey\bin” Using […]

Determine the Windows PowerShell version

To reliably display the version of the Windows PowerShell engine Open a PowerShell command window, Execute the command, $PSVersionTable.PSVersion PS C:\WINDOWS\system32> $PSVersionTable.PSVersion Major Minor Build   Revision —–   —–   ——-  ——- 5       1        16299  64 If no value is displayed, the version is 1.0, as it does not have the referenced […]

Enable PowerShell execution in Windows

The default settings of Windows disable the PowerShell script execution. This protects your computer in case a malicious PowerShell script would try to make changes on your machine. The same settings prevent you from executing your own automation scripts too. To enable PowerShell script execution in Windows 10 Click the Windows button and type powershell into […]

The security database on the server does not have a computer account for this workstation trust relationship

Time to time Windows servers may lose the trust of the domain. When you try to log in with your domain credentials you get the dreaded message: The security database on the server does not have a computer account for this workstation trust relationship This can have many causes, and the most effective way to fix […]

Restore Windows Server 2012 R2 from backup

Windows Server contains the Windows Backup functionality. It can create full backups of your server that contain all volumes. With the bare metal recovery, you are able to fully restore the server even if the hard disks fail, after a virus attack, or security breach. Depending on the size of the server drives and the backup media, […]

Failed to complete #create action: [undefined method `version’ for nil:NilClass] on default…

When you execute kitchen converge to launch an EC2 instance in AWS with Chef Test Kitchen, you get the error message: >>>>> ——Exception——- >>>>>> Class: Kitchen::ActionFailed >>>>>> Message: 1 actions failed. >>>>>> Failed to complete #create action: [undefined method `version’ for nil:NilClass] on default-windows-2012r2 >>>>>> ———————- >>>>>> Please see .kitchen/logs/kitchen.log for more details >>>>>> Also […]

Vagrant installation

 Vagrant Installation Warning! The new versions of Vagrant delete the contents of the /opt/vagrant directory. If you want to keep old versions of Vagrant, first move them out of the /opt directory. Download Vagrant from and follow the instructions to install it. Select DOWNLOAD… Select the operating system of your workstation. For Ubuntu: Debian RedHat: Centos […]

Configure the Windows virtual machine in VirtualBox

Enable shared folders on the virtual machine To be able to use shared folders between the host ( your workstation ) and the Windows virtual machine. Start the Windows virtual machine in VirtualBox, Select the virtual machine window on your workstation, In the Devices menu of VirtualBox select Insert Guest Additions CD image… In the virtual machine start Windows Explorer, […]