How to remove "Creative Cloud Files" from File Explorer address bar

I have tested the following, removing the registry key:

HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Desktop\NameSpace\{0E270DAA-1BE6-48F2-AC49-8B7440BCAABB}

Resolves the issue.

Before:

After:

Didn't even require a restart of Explorer. As I can't see any information from your HKCU path I can't confirm if the GUID will be the same for you, I only had two other things in there (Dropbox and OneDrive), where one had a default key of Creative Cloud Files. (I can also confirm removing the Dropbox and OneDrive ones from here removes from this dropdown also.)

It is a Shell Namespace extension (like Recycle Bin). The uninstaller should have unregistered it. But it's still there.

To remove it, run Registry Editor:

1. Press Ctrl+R.
2. Type regedit and click OK. Consent to elevation request.
3. Expand the tree to: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Desktop\NameSpace.
4. The tricky part is to find the right extension.

Warning: Before editing or removing a key, I recommend exporting¹ it to file. If something goes wrong, you will be able to import it into the registry and restore to the previous state.

To find the right extension key, click each key or use ↓ and look at the default value in the right pane. Probably you'll find one which contains Creative Cloud Files. Once you find it, remove it: right-click the key and then click Delete.

There's a similar per-user list of Namespace extensions in: HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Desktop\NameSpace.

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¹ To export a key, right-click it and then click Export. Navigate to a folder, enter file name and click OK to save it.

Adobe products are well-known for their voluminous updates of the registry, which are largely left-over after the uninstall. Below are some registry hacks which may relate to your problem.

A hack that can be found in this thread is to go to the registry key
HKEY_CLASSES_ROOT\CLSID\{0E270DAA-1BE6-48F2-AC49-A38C4014C938},
right-click Permissions and set all of the group and username entries to Deny :

Another thread claims the registry key is rather {0E270DAA-1BE6-48F2-AC49-AC2EEB83CE33}.

Another entry in the same thread counsels in the registry branch HKEY_CLASSES_ROOT\CLSID\{0E270DAA-1BE6-48F2-AC49-A38C4014C938} to set the value of System.IsPinnedToNameSpaceTree from 1 to 0. You could search the registry for this item, in case your branch is different.

There is another hack described in the article How to Remove Creative Cloud Files from the File Explorer Sidebar in Windows. You could try it, although it relates rather to the Explorer Sidebar.