Portable versions do not receive security patches, bug fixes, or stability updates from Corel. If a Windows 10 quality update breaks the application's functionality, there is no official resource to resolve the issue. Best Practices for Legacy Software on Windows 10
Many users, particularly those upgrading from older PCs, report that X5 is not fully compatible with Windows 10. Corel has stated that X5 will never work 100% with Windows 10 because it was optimized for the OSes of its era, like Windows 7 and XP. Coreldraw X5 Portable Windows 10
"Windows 10 updates occasionally break the portable launcher. I had to re-capture the app using ThinApp after the 20H2 update. But once set, it’s golden." — Portable versions do not receive security patches, bug
Even though CorelDRAW X5 is lightweight, Windows 10 adds overhead. Use these tweaks for the smoothest experience: Corel has stated that X5 will never work
Troubleshooting tips