uninstall the cc desktop app, again using the correct uninstaller per https://helpx.adobe.com/creative-cloud/help/uninstall-creative-cloud-desktop-app.html#sa_src=web-mes...
clean your computer of cc files per http://www.adobe.com/support/contact/cscleanertool.html
check for, and if available, update your os
if windows is your os, repair all ms visual c++ versions that can be repaired (use google if you don't know how to do this)
if windows is your os update your ms visual c++, if it can be updated (use google if you don't know how to do this)
restart your computer (don't skip this)
reinstall the cc desktop app using the "alternative download links" at the bottom of the page at https://helpx.adobe.com/download-install/kb/creative-cloud-desktop-app-download.html
use the desktop app to install your cc programs/trials
NOTE: win 11 users that have trouble with the latest win 10 installer often have success with the older win 10 installer.
in the future, to find the best place to post your message, use the list here, https://community.adobe.com/
p.s. i don't think the adobe website, and forums in particular, are easy to navigate, so don't spend a lot of time searching that forum list. do your best and we'll move the post if it helps you get responses.
<moved from using the community>