reloading lightroom and photoshop

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 (like this one has already been moved) if it helps you get responses.

<"moved from using the community">

with a subscription you don't need to bother with deactivation (or, more appropriately, sign-out) and you will need to (not activate but) sign-in.

ie, this page explains how to install cc apps by first installing the cc desktop app. the links at the page bottom allow you to select the installer suitable for your os, https://helpx.adobe.com/download-install/kb/creative-cloud-desktop-app-download.html

then use the cc desktop app to install your subscriptions and trials.

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p.s. if you are going to use a migration tool, first uninstall all adobe apps from that old computer:

uninstall every cc app including preferences per https://helpx.adobe.com/creative-cloud/help/uninstall-remove-app.html

then 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-messaging

clean your computer of cc files per http://www.adobe.com/support/contact/cscleanertool.html

you can then more safely migrate, but you'll still be moving some orphaned adobe junk files to your new computer, so definitely not desirable.

Not difficult at all. Typically it is recommended against using automatic migration tools from your OS and just install clean and move your photos manually. So you should de-activate/activate, ( https://helpx.adobe.com/download-install/kb/activate-deactivate-products.html ), install clean on the new computer, and then move your photos/libraries over.