[Help] MS Office Setup Cannot Find Installation Files on Windows 7 PC

I installed Windows 7 on my PC successfully, but after that I tried installing MS Office and it keeps failing. It shows a “setup cannot find” error even though all the installation files are clearly inside the folder.

I already tried almost every YouTube fix/tutorial I could find, but nothing worked. The strange thing is that the same MS Office setup installs perfectly fine on another PC without any issue.

Does anyone know what could be causing this on my PC specifically? Any help would be appreciated.