my date changes back to 2002 when i try to windows update!

hello,

My computer on windows MX, just recently purchased, will not let me run
windows update. i see the date keeps changing back to 2002 when i try to
enter the windows update website. if i try to run it from the system update
it will freeze. i have tried pretty much everything i found on the web about
this, but without any luck. i also downloaded updates and installed them on
the computer from the windows update website bypassing the date problem, i
run the antimalicious software... nothing nothing! symantech endpoint
protection tells me the computer is safe, but i feel there is a virus
somewhere, or malaware that i can-t remove not even trying through running
anti virus applications from the web, such as Trend Micro House Call