I can only use Creative Cloud under an administrator account

I am typing this from a standard Windows user account and the CC App works just fine, I can update apps, install fonts, etc.

"This is wrong. Adobe apps absolutely run under a standard account, that's my setup here at work and many businesses.

Is this a domain-joined Windows computer? If so, talk to your system admins about the problem."

As I said above, I can run all Adobe apps except Creative Cloud under a non-admin account.

This morning, I gave that account admin prvileges and can now access CC Desktop.

This should not be necessary and I am looking for a fix.  Clearly something is wrong with my setup or with CC.

I had cleared out all Adobe apps in an attempt to fix this, but still the same problem.

This is wrong. Adobe apps absolutely run under a standard account, that's my setup here at work and many businesses.

Is this a domain-joined Windows computer? If so, talk to your system admins about the problem.

"What dangerous privileges would that be?

These applications need full read/write privileges to your Windows user account. You can't run them from limited accounts.  All preferences and settings need full privileges. It writes to your user account on every application exit."

I am guessing you are not a Windows user (or if you are -read up on account privileges).

1. non-admin accounts can have full read/write/internet privileges.
2. I am running PS, Lightroom, Bridge etc with a non-admin account.
3. Creative Cloud Desktop ran just fine for everday users until recently - now it won't even open.

Adobe or Microsoft did something.  Adobe should fix it.   

Many savvy Windows users do not run their everyday programs out of their admin accounts (too many potential dangerous privileges).

By @mangurian

What dangerous privileges would that be?

These applications need full read/write privileges to your Windows user account. You can't run them from limited accounts.

All preferences and settings need full privileges. It writes to your user account on every application exit.