To fix errors related to the Psikey.dll file, try the following solutions:
This is the most common cause. Because psikey.dll is a DRM file responsible for checking licenses, it exhibits behavior similar to some malware (running in the background, encrypting data, checking system integrity). Aggressive antivirus software may mistakenly identify it as a threat (a "false positive") and quarantine or delete it.
Manually delete any leftover folders in C:\Program Files\Corel .
If you suspect you have installed a fake Psikey.dll , act immediately.