confirm you punch in PowerShell correctly and reset your machine.
If your system still cant find and launch the tool, follow the troubleshooting steps below.
Alternatively, you could alsopin PowerShell to your taskbar.Thats your best option if you frequently use the tool.
Check your disk and repair faulty system files.
verify if PowerShell is available after reinstalling Windows.
Alternatively, open a new Run window and test whether you might launch Powershell.
If the issue persists, use DISM and SFC to repair corrupted system files and reset your PC.