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SureBackup Job Displays Error "PowerShell is not installed on this computer."

KB ID: 4802
Product: Veeam Backup & Replication | 12 | 12.1 | 12.2 | 12.3 | 12.3.1 | 12.3.2
Published: 2025-12-11
Last Modified: 2025-12-11
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Challenge

A Veeam Backup & Replication 12.x SureBackup job, utilizing a PowerShell script as part of testing, fails with the error:

[SureBackup] [JobName] [ScriptTests] End 'Custom script 1: name $scriptName, failed - PowerShell is not installed on this computer'

Cause

This issue occurs for machines running Server 2025, due to the PowerShell 2.0 being uninstalled by the Microsoft update KB5065426:

https://support.microsoft.com/en-us/topic/september-9-2025-kb5065426-os-build-26100-6584-6a59dc6a-1ff2-48f4-b375-81e93deee5dd

Solution

Option 1: Upgrade Veeam Backup & Replication

This issue is resolved starting in Veeam Backup & Replication 13.0.1.180.

VBR 13.0.1 Upgrade Guide

Option 2: Apply hotfix for Veeam Backup & Replication 12.3.2.4165

If upgrading to the latest version of Veeam Backup & Replication is not possible, a hotfix is available for Veeam Backup & Replication build 12.3.2.4165.

Download Issue 1098982 Hotfix

Requires: Veeam Backup & Replication 12.3.2.4165

MD5: 0A3FE0C9FB7392E282C4F6B0AB12104C
SHA1: 949C2CA9590CEA8CD70348AF585F4FAEC3AFE5C4

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