Cannot open Power Shell or Power Shell admin ?

Hello,

Here are a few methods to try:

Method 1: Replace machine.config File

Navigate to the following directory: C:\Windows\Microsoft.NET\Framework64\v4.0.30319\Config

In this folder, locate the files named machine.config and machine.config.default.

Rename machine.config to machine.config.bak.

Copy machine.config.default, paste it in the same folder, and rename the copy to machine.config.

Attempt to launch PowerShell.

Reference link: Can't open PowerShell - Microsoft Community

Method 2: Run System File Checker (SFC) and Deployment Image Servicing and Management (DISM)

Open Command Prompt as an administrator.

Execute these commands sequentially, waiting for each to complete before moving on to the next:

sfc /scannow

DISM /Online /Cleanup-Image /CheckHealth

DISM /Online /Cleanup-Image /ScanHealth

DISM /Online /Cleanup-Image /RestoreHealth

These steps will check and repair corrupted system files that might be causing the problem.

Method 3: Disable and Re-enable Windows PowerShell

Type appwiz.cpl in the Windows Start Search box and press Enter.

Click on "Turn Windows features on or off."

Locate and uncheck the option for "Windows PowerShell," then click OK.

Restart your computer.

Repeat the process, but this time check the box to enable "Windows PowerShell" again.

Restart your computer once more.

Method 4: Install the Latest Version of PowerShell

If you're interested in using the most recent version of PowerShell, consider installing PowerShell 7. You can find detailed instructions on how to do this at the official Microsoft documentation: Installing PowerShell on Windows - PowerShell | Microsoft Learn

I hope one of these solutions resolves your issue. If not, please let me know, and we can explore further options.

I hope this information helps.

Best regards,

Karlie Weng