Unknown error message 1003 -means I can't reinstall and access Creative Cloud

[Joanna5FED]

I have had this error message '1003' in Creative Cloud appearing for months-tried reinstalling twice but it still appears. Now I can't go in and update at all as my organisation's subscription has expired and I need to log-in to sort out the new subscription. Message says: 'Creative Cloud desktop failed to update (Error code: 1003).' It would be helpful if this error code had some info around it in your list but it's not included. It's also blocked the blue circle at the top of the Cloud so I can't log in. Any info gratefully received as the I.T. team cannot fix it. Thanks.

[kglad]

first try, resetting the cc app: To reset the Creative Cloud desktop app, make sure it's in the foreground, then press:

Win: Ctrl + Alt + R
Mac: Cmd + Opt + R

if that fails, do a clean cc install:

uninstall every cc app including preferences, https://helpx.adobe.com/creative-cloud/help/uninstall-remove-app.html
then uninstall the cc desktop app, https://helpx.adobe.com/creative-cloud/help/uninstall-creative-cloud-desktop-app.html
clean your computer of cc files per http://www.adobe.com/support/contact/cscleanertool.html
restart your computer (don't skip this)
reinstall the cc desktop app, https://creative.adobe.com/products/creative-cloud.
if you're unable to install the cc desktop app at this stage, use an administrator account (solution 4 here, https://helpx.adobe.com/creative-cloud/kb/creative-cloud-missing-damaged.html)
use the desktop app to install your cc programs/trials