For older computers, Windows 10 simply might not be an option for lack of drivers. (Thanks Intel GMA 500 !)
So back to installing Windows 7 with SP1 fresh, and the next step is to get all the updates…
However this seems to take forever nowadays, runs a high CPU, high memory usage, and doing nothing. After a day of letting the computer sit and run, it was time to find a faster solution. As expected, it is a known problem. The solution is to update the update itself first: See KB3102810.
Microsoft released a new WindowsUpdate Client Update to fix the slow Update searching/Installation. Installing and searching for updates is slow and high CPU usage occurs in Windows 7 – https://support.microsoft.com/en-us/kb/3102810
After this you might also want to install this SUR: http://windows.microsoft.com/en-us/windows7/what-is-the-system-update-readiness-tool
For me just the KB3102810 update was sufficient and the computer is now trying to install 208 updates; Let’s see how long that takes 🙂