uninstall everything cc 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 3 here, https://helpx.adobe.com/creative-cloud/kb/creative-cloud-missing-damaged.html)
use the desktop app to install your cc programs/trials
I have tried all of that first. Unfortunately it did not help.
using a browser that allows popups and cookies, contact adobe support during pst business hours by clicking here and, when available, click 'chat', http://helpx.adobe.com/x-productkb/global/service-ccm.html or contact @AdobeCare via twitter.
Adobe support could not help. They tried uninstalling/re-installing a bunch and concluded that the OS was corrupt. That resolution makes zero sense. Since I am IT for my organization, I have tried several different scenarios.
1. Computer currently on 1607 installs Adobe Photoshop CC 2018, runs fine.
2. Same computer updates to 1709, Photoshop CC 2018 no longer works, and uninstall/re-install does not help.
3. Another computer currently on 1607 without Adobe, updates to 1709, then installs Photoshop CC 2018 and runs just fine.
So unless having both Photoshop installed AND updating 1709 causes the OS to become corrupt, it doesn't make any sense.
"Same computer updates to 1709, Photoshop CC 2018 no longer works, and uninstall/reinstall does not help."
Thank you! This is my situation as well! My PC is on 1709 and the PS CC2018 no longer works!
Will Adobe fix this soon? Thanks!
Are you using Cylance or other antivirus? We've had this kind of symptom caused by antivirus software in the past, most recently with Cylance. The issue was reported to them and they're creating a whitelist entry for Photoshop to avoid causing the problem. So if you have Cylance be sure you're up to date. In the meantime, your IT support person may be able to help you temporarily disable the antivirus software or whitelist Photoshop.
Yes actually, we are using Cylance. I'm the IT person at my firm. On the affected machines, I have actually tried uninstalling Cylance, then uninstalling and re-installing Photoshop CC 2018 and it didn't seem to fix the issue. Do you know what were the complete steps you guys did to fix the issues after disabling/white listing it the antivirus?
Hi Mihn, check with the Cylance folks. Customer Support Community
There were a few other customers here that worked with them to solve it:
Photoshop 18.1.2 seems like the latest one that works for us on Windows 10 1709.