How can AVG Ultimate be used to uninstall remnants of PC Matic?

Hello Steve,
We  apologize for the inconvenience caused.
We have sent you an email instruction to get connected with our technical support team. Please follow those instructions to get in touch with them and you should be able to resolve your issue.
Please feel free to get back to us for further assistance.
Thank you.

I purchased AVG Ultimate to remove any non obvious remnants of PC Matic which had corrupted my computer and caused chronic crashes and actively prevented downloading any help. I went into control panel and deleted all visible PC Matic files (3) but computer was still crashing. 

Upon installation AVG Ultimates first scan stabilized my computer. After shutting computer down over night chronic rapid crashing has returned.

 Moreover, The login for AVG Ultimate has been corrupted and does not recognize my Lis # or other login in info so I cannot access ZEN!

I need to uninstall all embedded remnants of PC Matic.

Hello Steve,
We  apologize for the inconvenience caused.
We have sent you an email instruction to get connected with our technical support team. Please follow those instructions to get in touch with them and you should be able to resolve your issue.
Please feel free to get back to us for further assistance.
Thank you.