Windows 7: update error code 8024402f

i tried adding preferred DNS 4.2.21 and alternate DNS 4.2.2.2 and my wireless connection stops working please help.

Welcome to the forum Matics
Try to make a restore system:

System Restore

tnx Hanna now my wireless is workin again but stil i cnt check for updates

Nice to know that your wireless is working.
What kind of updates are you looking for?

windows updates, is there a way by which i can automatically download thm?

Maybe your WU is not enabled.
Open control panel, tick administrative tools, then click on services and look for windows updates if it's enabled.
If it's not , enable it and see if that solve your problem.

windows update is enabled but tnks for ua hlp with the wireless

Temporary connection-related errors may occur when you use Windows Update or Microsoft Update may help

the troubleshooter says an error occurred while downloading one or more components and the troubleshooter cannot be run.

Try it again - although it sounds like you may have a dodgy connection? try using a wired connection, if you're on wireless at the moment