Hello Thomas,
You can find answer to your question together with your another post here https://support.avg.com/answers?id=906b0000000XbvV .
Please try keep whole conversation in one question/thread to speed up resolution. Thank you.
I have tried downloading the AVG Protection pro for my PC but unfortunately it keeps failing with error code :- 0xc0070643, i have done all the obvious things on the forum of uninstalling old secuirty software and also the AVG software but it just continues to fail i need help as ive already paid the subscription for this.
Thomas, Please refrain from carrying out multiple postings on the same subject! You won't obtain an answer to your query any faster!.
AVG Guru