How to create a Windows 10 bootable USB for another PC

If you have UAC enabled click "Yes"

Click "Accept"
Option: Actually read T&Cs

Select "Create installation media (USB flash drive, DVD or ISO file) for another PC"
Click "Next"

If you are creating a USB for another computer take care to get these settings correct for the computer it will be used on. Language is not so important as it can be changed later.
If you are creating a back up for the computer you are running the tool on, selecting the check box "Use the recommended options for this PC" will select the settings automatically.

Select "USB flash drive"
Click "Next"
By selecting "ISO file" you can create a disk image that can be burned to a CD or USB at a later date.

Now select the USB drive you wish to put the tool on.
If your drive does not appear here, make sure it is correctly inserted and detected by Windows.

Now windows will download and verify the installation files.

Now windows will write the installation files to your drive.

Once it's finished writing to the disk click "Next"
And after a short wait you're done!

Can I make a bootable Windows 10 USB from another computer?

You are able to create a Windows 10 recovery USB drive for another computer in two ways, including using a built-in feature to create a recovery drive in Windows 10 operating system itself or creating a Windows 10 USB drive with the help of the best bootable USB hard drive creation tool.

Can I use my Windows 10 USB on multiple computers?

Replies (2)  As far as I know, you can install Win10 using the same USB on multiple devices. There isn't an option to type in the device name so you can use the USB to install on a specific device. So the answers is yes, you can install using the same USB.