Problem:

Some applications do not work with the latest Microsoft .NET Framework. You need to remove it and install an older version of Microsoft .NET Framework.

Solution:

1. Use below utility to remove the current Microsoft .NET Framework.

.NET Framework Cleanup Tool

2. Download an appropriate version of Microsoft .NET Framework using one of below links and install it.

• .NET Framework 2.0 with SP2 – http://www.microsoft.com/downloads/details.aspx?FamilyID=5b2c0358-915b-4eb5-9b1d-10e506da9d0f
• .NET Framework 3.5 with SP1 – https://www.microsoft.com/en-us/download/details.aspx?id=25150
• .NET Framework 4 Full – https://www.microsoft.com/en-us/download/details.aspx?id=17718
• .NET Framework 4 Client Profile – https://www.microsoft.com/en-us/download/details.aspx?id=24872
• .NET Framework 4.5.2 – http://www.microsoft.com/en-us/download/details.aspx?id=42642
• .NET Framework 4.6.2 – https://www.microsoft.com/en-us/download/details.aspx?id=53344
• .NET Framework 4.7.1 – https://www.microsoft.com/en-us/download/details.aspx?id=56116

3. Use below utility to detect the installed Microsoft .NET Framework versions.

.NET Detector