Download and install

you do not have to repurchase anything.  all adobe subscriptions all unlimited installs and usage on windows and mac computers.  (though to use on more than 2 computers, you have to sign out of one, and sign into the 3rd).

install the cc desktop app from here https://creativecloud.adobe.com/apps/all/desktop?action=install&source=apps&productId=creative-cloud and use it to install your adobe subscription and trial programs.

if you have trouble downloading, use the alternative download site at page bottom here, https://helpx.adobe.com/in/download-install/kb/creative-cloud-desktop-app-download.html

if after installing the cc app you see trials offered instead of your subscription programs, check your account to verify your subscription is what you expect and to verify your adobe id, https://account.adobe.com

then sign out and then back in to your cc desktop application using the same adobe id used to verify your subscription: http://helpx.adobe.com/creative-cloud/kb/sign-in-out-creative-cloud-desktop-app.html