Hello Tina White,
Thank you for posting in Q&A forum.
1.Based on the description "While trying to install software on Windows 11 Professional", what software are you installing? Microsoft software or Microsoft software?
2.If it is a paid software or free software.
3.What error message did you receive via GUI when you installed this software? You can also troubleshoot the issue through the error message.
4.Whether the machine you are installing software is in domain or workgroup? If it is in domain, you can try to use domain administrator (or local administrator if it is in workgroup) to install this software.
5.Is installing this software related to add certificate to third-party root Certification Authorities store? Check if you need to install any certificate
related to this software before you install this software.
6.Please check if you can install this software on another machine.
7.If it is non-Microsoft software, you can also try to consult the question for any help.
Hope the information above is helpful.
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