Error Code 30045-44 is referred to be a problem with the broken registry on your system as per this Microsoft Office for windows 11 ,Windows 10 users. If you get an error that contains 30145-44 and error 30045-4 office when you try to install Office, there are many things you can try to fix the problem.
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https://www.officelivesupport.....com/error-code-30045