Select the ‘USB flash drive’ option and proceed. The next panel offers two destination options for installing Windows 10 the USB or ISO file.

Failure to provide a product key if prompted will allow you to only proceed with Home and Pro Keep in mind the version that was initially in your PC. You can have both 32 bit and 64 bit Windows installations on the same USB, or simply opt for the one you need. In the boxes provided, choose the Language, edition and architecture. This bit is important because it will allow you to specify the language, edition, and architecture as the current Windows installation. Right under Architecture, uncheck the box for “use the recommended options for this PC”. The next panel is for language, architecture, and edition. On the panel that appears, select the second option that reads “Create installation media for another PC” and then click NEXT. Once the download has completed, right click on it and select Run. Download the Media Creation Tool from here. Now read system requirements, and keep the Windows 10 product key near you (if Windows 10 was already activated before you may not need it).

If you use a flash drive with data inside you may lose it in the process. Ensure you have suitable internet connectivity and also prepare an empty USB flash disk with a minimum of 4 GB for a 32 bit installation or 8GB for 64 bit installation. This option can be carried out by using the Windows Media Creation tool. Option 2: Windows Repair using USB Installation Media

Windows 10 repair install from boot