Corel no longer supports X5. There is no "official patch" to remove this.
Some users replace CorelDRW.exe with a patched version that bypasses the Protexis check entirely. This is technically a crack but serves as a repair tool for legitimate owners stuck with a broken licensing service. Use at your own risk and only if you have a genuine serial number. Corel X5 Remove Protexis-cmd
Navigate to: HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Protexis (or just HKEY_LOCAL_MACHINE\SOFTWARE\Protexis on 32-bit systems). Delete the entire folder. Corel no longer supports X5
Go to the CorelDRAW X5 program folder, typically: C:\Program Files\Corel\CorelDRAW Graphics Suite X5\Programs . Corel X5 Remove Protexis-cmd