Solve : Can't use my Anti-virus program it disappears??

1.	Solve : Can't use my Anti-virus program it disappears??
Answer» I have HP computer and run Windows 10. I run AVG Anti-Virus Free Version. Today my AVG when i click on it to update it, it disappears in 5 seconds? I have uninstalled and REINSTALLED it several TIMES. Does anybody know what i can do? Its got to be some LITTLE something as I restored a backup from August 8th and it still disappears? Windows 10 COMES with its own AV, MS Defender. Dump AVG and use Defender.

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