Windows defender was unable to complete the update: 0x800800

fishquail

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Mar 5, 2006
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I have a legal copy of windows on my laptop. Windows defender says definitions havnt been updated in 128 days, but when I try to update windows defender it says:

"Windows defender was unable to complete the update: 0x80080005. Server execution failed."

I have searched microsoft and everywhere and there is no record of this problem anywhere. I have tried re-installing the program, nothing helps.
Do i have a hardware problem?