---
title: "Error when deploying ControlUp Monitor: Install .NET FW 4.8 on the target machine"
slug: "error-when-deploying-controlup-monitor-install-net-fw-48-on-the-target-machine"
updated: 2025-09-02T09:08:54Z
published: 2025-09-02T09:08:54Z
canonical: "support.controlup.com/error-when-deploying-controlup-monitor-install-net-fw-48-on-the-target-machine"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://support.controlup.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Error when deploying ControlUp Monitor: Install .NET FW 4.8 on the target machine

## Issue

The deployment of the ControlUp Monitor fails if .NET Framework 4.8.1 is installed on the monitor machine.

When deploying the monitor, the error message **Install .NET FW 4.8 on the target machine** is shown: ![Install .NET FW 4.8 on the target machine error message](https://cdn.document360.io/098100b7-b9da-4bea-b4b9-017140ab863e/Images/Documentation/image-Y0AOJDPL.png)

## Workaround

1. In the registry, browse to `HKLM\SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Full`
2. Check the value under `Release`. In this case, the value is **533325**. This indicates that .NET Framework 4.8.1 is installed  

![Release value in registry](https://cdn.document360.io/098100b7-b9da-4bea-b4b9-017140ab863e/Images/Documentation/image-MFEA7TAD.png)

You can find more information about the version in the [official Microsoft documentation](https://learn.microsoft.com/en-us/dotnet/framework/migration-guide/versions-and-dependencies#version-information).

1. Uninstall .NET Framework 4.8.1 by removing the relevant Microsoft KB, such as KB5011048 or KB5022291
2. Once the KB is removed, reboot the machine and you can deploy the monitor again.