Keep getting threat detected from AVG?

well i keep getting threat detected every 2 minutes or so and its really annoying, its a trojan horse crypt UIE and i have scanned the laptop and all thats come up is cookies so ive removed all unwanted infections and still keep getting it and plus when it pops up i always click remove threat as a power user and click move to vault, ive even emptyed the vault and still the virus can anyone help please???