After the March 13' Enterprise hotfix rollup came out (90 hotfixes), I decided to update my Windows 7 x64 SP1 media. My first attempt was just to use the Windows offline downloader, take all post SP1 security and optional updates, then integrate them into a disk using Win 7 toolkit. This method failed miserably, as the OS would not install. I ended up installing the OS with SP1, writing down what updates where required, then download them from Windows Update Catalog site. I integrated them and reinstalled, then found a few more updates which I downloaded and integrated. I've wound up integrating approximately 109 security/optional updates into Win7 SP1 without that script popup for non-integratable/add-on updates, so it's as close to Microsoft official as possible. When I install the OS I only have a few things to download, which are things that do not cleanly integrate without the add-on script or that I don't want to integrate. Anyways, point of this post is to tell you that I don't think there is a list of specific must have updates. There are some, but you'll probably have to install the OS and look what's available and download them separately to integrate. But now that I know about the three not to integrate, I may try redownloading non-SP available updates with WSUS offline, deleting those three, and trying to integrate what's left. *update* I just made a combination disc. I used WSUS Offline to grab post-SP1 updates, and I also used Windows Update Downloader to get security and non-security updates. Again using Win 7 toolkit, I imported the WSUS offline updates first, then imported the WUD updates (many of which I figured would be identical). For some reason I got a few dozen updates saying that they are upgrades for existing KB's, which I have never seen before on Win 7 toolkit do. I left it to integrate over night (205 updates!). I will try the disc tomorrow.