What security software do you have? Try to go to C:\Windows\System32\GWX and launch the GWX.exe If it fails to launch go to computer > uninstall or change a program, select view installed updates and remove KB3035583. Then try restarting the computer and reinstalling the update.
Ok, So my 1640 is still going strong. It's still using Windows 7 Home Premium SP1, and I have fully updated it. Yet, despite fulfilling the requirements Microsoft set out, I'm still not seeing the 'Get Windows 10' app icon in my system tray. I have searched all over and I am just not getting anywhere. All I want to know is whether I have the capability to upgrade to Win10 or whether I'm going to be disappointed in 2 months time when my girlfriend's lame computer upgrades and mine doesn't. ha.  Sam
Studio XPS 16xx - Can I update to Windows 10?