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My Windows Defender is saying I need to check for new definitions. I let it check, and it says its all up-to-date. But the message on the program still says Check for new definitions.

I tried everything, reinstalling it, rebooting pc, it still says check for new definitions. Then it says Your definitions havent been updated in 14 days. Definitions allow windows defender to detect the latest harmful or unwanted software and prevent it from running on your computer.

gah what can i do, now it says my definitions havent been updated for 117 days, lol!... what do i do, i checked for definitions, but it said its all up-to-date.

Hi IOWN,

Have you tried a reinstall of defender? It may solve your update problem (It'll install with current definitions) and may replace any files that you are missing to complete updates.

Yes, I have tried that, but now it says i havent updated definitions for 117 days, lol. plz help.

A quick google check brings up loads of people who have problems of some sort with updating Windows Defender.

See if this works , remove the current signature file. To do this, click Start, click Run, type Msiexec /x {A5CC2A09-E9D3-49EC-923D-03874BBD4C2C} , and then click OK.

Then try to update again.

I have tried that loads of times, but it said like Installation Package could not be verified/found.