Try using the process on this link to uninstall the Adobe Creative Cloud app, restart (not shut down) your PC and reinstall the Creative Cloud app, and then try installing After Effects again.
If that does not resolve the problem.
Click your Start Button, then just type msinfo and press Enter, please provide a screenshot of the resulting System Information window.
.
.
Standard Disclaimer: This is a non-Microsoft website. The page appears to be providing accurate, safe information. Watch out for ads on the site that may advertise products frequently classified as a PUP (Potentially Unwanted Products). Thoroughly research any product advertised on the site before you decide to download and install it.