오류코드 12015 해결방법 제시해주세요

@happy_enthusiast9104 First, I would sign out everywhere. Adobe.com and creative Cloud desktop app. And any Adobe application, sign out. I would also clear my history, cache and cookies to all my web browsers as well (make sure you change from 15 minutes to All Time!); we need to make sure we are clearing things up.

If oou bought a used PC with Photoshop pre-installed by the previous user? Or installed by the reseller? And Photoshop wouldn't work with an active subsription? In this case, Photoshop likely was linked to the previous owner's account or, more likely, it was a pirated version. These versions often use "cracks" that modify system files to block Adobe's servers so the software doesn't realize it’s unlicensed. Even if you buy a legal plan, those blocks are still there. When your installed a legal version over a "cracked" version, those hidden blocks remained, which is why the app can’t check your subscription status.

Even though you have uninstalling Photoshop and re-install PS is not enough. The previous user likely changed your Windows System settings to block Adobe. Think of it like a blocked phone number. You buy a new phone (New Photoshop), but the phone company (Windows) still has Adobe's number on the 'Block List.' We need to unblock it." 

The Adobe Cleaner Tool you used, does not fix the connection blocks in your Windows system. Please download this specific repair tool. It is very small and only does one thing: it unblocks Adobe's servers so your Photoshop can see your plan! https://helpx.adobe.com/ca/creative-cloud/apps/troubleshoot/diagnostics-repair-tools/run-limited-access-repair-tool.html. Even though you checked the Hosts file and saw nothing, pirated versions often hide these entries or use different redirection methods that you might miss. This Limited Access Repair tool is programmed specifically by Adobe to hunt for and remove those exact blocks.

If the Limited Access Repair Tool works and you cleared your history, cache and cookies—it should it fixes the "roadblock" between the computer and Adobe. Once that road is open, the Photoshop already sitting on the hard drive will finally be able to "see" the server and verify the subscription. Log into Photoshop with the active subscription. 

Good Luck!