Hey, totally get how frustrating this is — especially when the user is licensed and just wants to get going.
Since the basic uninstall and reinstall through CC didn't work, here's what I'd try next in order:
Step 1 — Run the Acrobat Cleaner Tool first
A regular uninstall often leaves behind leftover files that confuse the next install into defaulting back to Reader. The Acrobat Cleaner Tool is specifically built to remove these remnants cleanly before a fresh install. Grab it from here: https://adobe.ly/3MD4ESm — run it, reboot the machine once, then move to the next step. Adobe Experience League
Step 2 — Install directly using Adobe's standalone installer, not through CC
This is the bit that usually fixes it. After running the Cleaner Tool and rebooting, install Acrobat Pro using the direct installer link rather than going through Creative Cloud — https://adobe.ly/47eUkcN — this bypasses whatever CC is doing wrong and pulls down the Pro build directly. adobe
Step 3 — Double check the product profile in Admin Console
Since you're managing this from the admin portal, worth quickly confirming the user is assigned to the correct Acrobat Pro product profile in the Admin Console and not just a Reader or free tier profile. Sometimes the license looks assigned at the top level but the product profile underneath is pointing to the wrong entitlement — CC then installs whatever that profile says rather than what you'd expect.
Step 4 — Check via Help menu inside Reader as a quick test
Before going through all of the above if you want a quick check first — open Reader on the machine, go to Help → Install Premium Features and see if that option appears. Some users have had this work and it flips Reader into Pro mode without a full reinstall — worth a 10 second check before the longer steps. Adobe Experience League
As an admin you can also build a custom Acrobat Pro package directly from the Admin Console under Packages and push it to the machine — that's the cleanest enterprise route and completely sidesteps the CC app issue altogether if the above doesn't resolve it.
Hope one of these gets the user up and running properly!
-AV