Conflicts with antivirus and firewall
Check if your Antivirus program is blocking any of the programs that are getting installed on your computer. It is always suggested to disable your antivirus before you install any program on your computer.

Temporary files and Temporary Internet files:
There might be temporary files and temporary internet files and junk files in your computer which will cause registry issues and make some services not responsive. These temporary files might cause trouble for the system programs.
It is important for you to optimize and tune up your computer.

Reasons for Office 365 Error Code 30175-4: Internet access is required to set up your Microsoft account. For Office 365 Home and Office 365 Personal, internet connectivity is required once monthly for uninterrupted service.
Conflicts with antivirus and firewall
Check if your Antivirus program is blocking any of the programs that are getting installed on your computer. It is always suggested to disable your antivirus before you install any program on your computer.

Conflicts with antivirus and firewall
Check if your Antivirus program is blocking any of the programs that are getting installed on your computer. It is always suggested to disable your antivirus before you install any program on your computer.

Temporary files and Temporary Internet files:
There might be temporary files and temporary internet files and junk files in your computer which will cause registry issues and make some services not responsive. These temporary files might cause trouble for the system programs.
It is important for you to optimize and tune up your computer.