There are several ways to run a PowerShell script. Here are the most common methods:

• From the command prompt

1. Open a command prompt.
2. Navigate to the directory where the script is located.
3. Run the following command:

powershell.exe -file <script_name>.ps1

For example, to run a script named myscript.ps1, you would run the following command:

powershell.exe -file myscript.ps1

• From Windows PowerShell

1. Open Windows PowerShell.
2. Navigate to the directory where the script is located.
3. Run the following command:

. <script_name>.ps1

For example, to run a script named myscript.ps1, you would run the following command:

. myscript.ps1

• From the Run dialog box

1. Open the Run dialog box.
2. Type the following command:

powershell.exe -file <script_name>.ps1

For example, to run a script named myscript.ps1, you would type the following command:

powershell.exe -file myscript.ps1

• From the context menu

1. Right-click the script file.
2. Select Run with PowerShell.

This will open a new PowerShell window and run the script.

The execution policy of PowerShell determines whether or not you can run scripts. By default, the execution policy is set to Restricted, which means that you cannot run scripts unless they are signed by a trusted publisher. If you want to run a script that is not signed, you need to change the execution policy.

To change the execution policy, you can run the following command:

powershell.exe -executionpolicy <policy_name>

For example, to change the execution policy to Bypass, you would run the following command:

powershell.exe -executionpolicy bypass

Once you have changed the execution policy, you can run the script.