Before purchasing third-party software, you might want to try these free methods provided by Microsoft: Inbox Repair Tool (SCANPST.exe):
The activation key you receive will depend on the edition you choose: Price (1-Year) Key Features stellar repair outlook activation key link
to scan and preview your repaired PST data before buying the key. Are you experiencing a specific error message during activation, or do you need help locating your PST file to begin the repair? Before purchasing third-party software, you might want to