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Unblock PDF Preview Using PowerShell in Windows 11

• Posted on January 20, 2026January 21, 2026

Step 1: Open PowerShell as Administrator

1. Click Start Menu
2. Type PowerShell
3. Right-click Windows PowerShell
4. Select Run as administrator
5. Click Yes on the UAC prompt

Step 2: Run the PowerShell Command

Navigate to the folder containing your PDFs, then run:

Get-ChildItem "*.pdf" | Unblock-File