Need new Mathcad 15 and Prime 3.0 licenses for a new Windows 11 computer

Forum|Forum|7 months ago
September 4, 2025
2 replies
623 views

I have an old copy of Mathcad 15 and Prime3.0 installed on a Windows 10 computer which was purchased 2/8/2014 . I need Windows 11 licenses for both as I purchased a new computer.

Installation

Best answer by terryhendicott

.NET Framework 3.5 is essential for running many legacy applications on Windows, and it can be installed or enabled easily on Windows 10 and 11.

Download Microsoft .NET Framework 3.5 from Official Microsoft Download Center

https://geekchamp.com/how-to-enable-or-install-net-framework-3-5-on-windows-11-10/

T

terryhendicott

21-Topaz II

Hi

See this conversation

https://community.ptc.com/t5/Mathcad-Installation/reloading-Mathcad-in-new-windows-11-computer/m-p/1029415?search-action-id=165130949625&search-result-uid=1029415

Cheers

Terry

M

mschipani

Author

1-Visitor

Thank you Terry! I was able to work my way through the electronic provisioning documents and got Prime 3.0 licensing and up and working, but hesitated attempting to install Mathcad 15 as I didn't know how downloading and installing Net Frame 3.5 and some earlier versions might affect my new Windows PC. If anyone has successfully done this without deleterious effects, that would be appreciated. Here's a link to a good article on how to accomplish what I did: - PTC Community.https://community.ptc.com/t5/Mathcad-Installation/How-to-obtain-Mathcad-Single-User-and-Student-Licenses/m-p/706384#M16