!!!!! Found the solution for my computer !!!!! thanks tufenuf on the last page of the third link I found the solution that worked for me.

Go into regedit. (Backup your registry of course)

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\

Update these values:

"NoActiveDesktop" to "1"
"ForceActiveDesktopOn" to "0"

Exit regedit. Use task manager to restart explorer.exe or just reboot.

After this go to MyComputer/Properties/Advanced/Performance/adn then click on shadows.

Thanks everyoen for the help