With your bootable USB inserted, restart your computer. However, the computer will normally boot from its internal hard drive. You must interrupt this process and instruct it to boot from the USB. This is done by pressing a specific key during the initial startup screen (the manufacturer’s logo). Common keys are . The exact key is usually displayed briefly on screen or can be found in your PC’s manual.
Once you access the , select your USB drive (often listed by brand name, e.g., "SanDisk USB Drive"). The computer will now load the Windows Setup environment. This is where you will make critical choices. After selecting your language and edition, choose "Custom: Install Windows only (advanced)" —not the upgrade option. You will now see a list of your hard drive’s partitions. Here, you can delete existing partitions (warning: this erases all data) to create unallocated space, or simply select the primary partition and click Next . Windows will then begin copying files, a process that typically takes 15-30 minutes, during which the computer will restart automatically. Do not remove the USB drive until you see the final setup screens. reinstall windows using usb
When the computer reboots and asks for your region, keyboard layout, and Microsoft account, you have entered the final phase. Follow the on-screen prompts, re-enter your product key when asked, and create a user account. At this point, you have a pristine, factory-fresh version of Windows. With your bootable USB inserted, restart your computer