Starting a computer from a multiboot USB stick can avoid major difficulties and data loss in an emergency..
Murphy's law says: The computer always fails precisely when an important delivery is due, a project is to be completed or there is currently no backup of important data. In such a case, good advice is expensive, even if the costs are “only” personal time spent on data backup and reinstallation. Not to mention the miserable fiddling about rescuing data from a broken Windows or Linux installation. Reason enough to have a USB stick (or rather a compact SSD) to hand to start the computer. So that all rescue and installation tools are immediately at hand, it should preferably contain Windows and Linux. You only need one USB stick for all systems.
This is made possible with the help of the WinSetupFromUSB tool : This not only allows a Windows environment to be set up on the USB stick or an external SSD, but also enables Linux to be included at the same time. At the start you can choose between both systems. However, you need a sufficiently large USB stick, or even better, a USB SSD with at least 64 gigabytes. After that, setup is a breeze:
You can now try out the USB stick, for example by restarting your computer and selecting Boot from USB drive. Alternatively, you can test the stick with a virtual machine - for example in VirtualBox. If you can see the boot menu and select the system, you are on the safe side. By the way: Instead of the regular Windows ISO, you can also use a ready-made Windows - for example from WinPE or Hiren's BootCD - with this you also have a pre-installed Windows at hand.