Double-click on it and you’ll see the Troubleshooter (see screenshot below). The downloaded file is called latestwu.diagcab. Go to the Windows Update Troubleshooter page and download the Troubleshooter for your version of Windows. In my experience, they don’t work all that frequently, but they’re easy to use and if you’re lucky can save you a lot of headache. If you can’t figure out what’s wrong with your machine – that is, why an update doesn’t take – you should start with Microsoft’s downloadable troubleshooters. You’d be surprised how often an install will go through the second time, once your machine sheds its odd peripherals. Disconnect unnecessary USB-connected items: drives, modems, dongles, toasters, and so on.Disable antivirus and firewall – even Microsoft’s antivirus and firewall.If your upgrade failed on the first try, take these three simple steps before you try again: I’ve listed the fixes in the order they should be pursued. Here’s our attempt to guide you through the upgrading process – what you need to accomplish and what to avoid.

Windows 10 pro installation media