Did you just reinstall Windows 7 after having enough of Windows 10? Can’t get it to update? It happens a lot. A fresh install of Windows 7 is met with a screen saying “searching for updates”, except the search doesn’t stop. It JUST. KEEPS. SEARCHING. Thankfully, there’s a way to fix it! Bear in mind, this works a lot of the time, but not all the time. There’s an update you can download, but there’s a few steps to it.
After all that, change the automatic update settings back, and let the computer do the rest. I’m not sure why a clean install of Windows 7 has issues with updates other than Microsoft’s relatively new lack of support, but this seems to be the drain cleaner that blasts out the clog.