Unblocking DLL (Dynamic link library) files in Windows 11 is essential when files downloaded from the internet or external sources are flagged as "blocked" by Windows security. This prevents them from running properly until manually approved. Below are methods to resolve this efficiently, including bulk unblocking solutions.
Right-click on the blocked DLL file.
Select Properties.
Under the General tab, find the Security section.
Check the Unblock option (if available).
Click Apply and OK.
Press Win + X, select Windows Terminal (Admin).
Enter the command: `Get-ChildItem "C:\Path\To\Your\Folder" -Recurse
Press Enter.
Run the command to unblock all DLLs: Get-ChildItem *.dll | Unblock-File
Note:Replace *.dll with *.* to unblock all file types.
Press Win + R, type gpedit.msc, and press Enter.
Navigate to: User Configuration > Administrative Templates > Attachment Manager.
Double-click "Do not preserve zone information in file attachments".
Select Enabled, click Apply, then OK.
Open Notepad, paste the batch script:
batch
@echo off
for /r %%i in (*.dll) do (powershell -command Unblock-File -Path "%%i")
echo All DLL files have been unblocked!
pause 
Save the file as UnblockDLL.bat (set “Save as type” to All Files).
Right-click the batch file and select Run as administrator.
