Since using unauthorized software carries significant security risks (like malware) and violates terms of service, I recommend using the of Premiere Pro through Adobe Creative Cloud . Official Setup & Resources
If you are having trouble with a legal installation, consider these tips: adobe-premiere-pro-cc-7-2-2-build-33-final-kuyhaa
: If an old installation is stuck, use the Adobe Creative Cloud Cleaner Tool to remove trace files. adobe-premiere-pro-cc-7-2-2-build-33-final-kuyhaa