windows update error 8024402F

windows unknown error 8024402f when checking for updates.

I also tried many solutions including new clean OS installation but none worked.
As soon as I uninstalled .net 4 and installed .net 4.5, updates were available again
thankyou for all the details, they were extremely helpful.

Kenny58 said:

After days of trying to find out whats causing the problem, I found out that an update to .net was the culprit (KB982670). I uninstalled .net and did a check for updates. When I installed the update, afterwards I would get the same error. After uninstalling again .net and hidding the update, It works fine eversince.

After hours of trawling the net and and running reg fixes, removing .net 4 client fixed the problem.

Very well done!

Hello all
I've tried a many way to fix this error but no way!!
the best way I used :
1- open your browser and type in google search : what's my ip
2- copy your ip address
3- go to Control Panel\All Control Panel Items\Network and Sharing Center
then at the left press on CHANGE ADAPTER SETTING then right click on your network connection
( Ethernet or wi fi ) and go to properties
4- go to INTERNET PROTOCOL VERSION 4 (TCP/IPv4) double click on it
5- on the PREFERRED DNS SERVER type the ip address that you searched for on google
press OK and join your update