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Issue Plesk - Windows Server 2025 Installation Fail

enthu19

New Pleskian
Server operating system version
Windows Server 2025 Standard
Plesk version and microupdate number
18.0.73
I am trying to install Plesk on Windows Server 2025. Since PowerShell 2.0 is deprecated, I’m getting an error. Please help me fix this.
it used to work on Windows Server 2022 with PowerShell 2.0.



Downloading file pool/release/PLESK-WIN_18.0.73_17725/reportupdate.exe: 0%
Downloading file pool/release/PLESK-WIN_18.0.73_17725/reportupdate.exe: 100% was finished.
Downloading file pool/release/PLESK-WIN_18.0.73_17725/save-installation-info.php_: 0%
Downloading file pool/release/PLESK-WIN_18.0.73_17725/save-installation-info.php_: 100% was finished.
Downloading file pool/release/PLESK-WIN_18.0.73_17725/examine_launcher.exe: 0%
Downloading file pool/release/PLESK-WIN_18.0.73_17725/examine_launcher.exe: Operation too slow. Less than 500 bytes/sec transferred the last 30 seconds. Will retry in 3 second(s)...
Downloading file pool/release/PLESK-WIN_18.0.73_17725/examine_launcher.exe (retry 1 of 3): 11%
Downloading file pool/release/PLESK-WIN_18.0.73_17725/examine_launcher.exe (retry 1 of 3): 100% was finished.
Error: The installation of the package 'powershell2' failed with code -2146498548. (install: Enabling Windows PowerShell 2.0 Engine...)
Not all packages were installed.
Visit Plesk to search for a solution.
 
Hello, @enthu19 . Starting with the September 2025 update, Windows Server 2025 no longer includes Windows PowerShell 2.0, however, the same is needed by Web Deploy. We do have a registered bug with ID PPPM-15153 about this issue. Until the issue is resolved, please follow this workaround:

  1. Connect to the Plesk server via RDP.
  2. Download the ps2DLC.zip file from the official Microsoft website
  3. Extract the ps2DLC.zip file to a folder of your choice.
  4. Start a PowerShell window in admin mode.
  5. Change to the folder containing the extracted PowerShell 2.0 files.
  6. Run the following command: .\loadGAC.ps1
I hope that helps!
 
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