[leonsio]

Hi. I have buy a lap top which has windows 10 but i have problems with it and i wont windows 7 professional . I have download the iso file and i have done an usb flash drive bootable with windows 7 professional. But i dont know how to remove windows 10 and install 7 from usb. Please if anyone can help me bcs this is running all my time. thank you.

[webdev77]

If it's a new laptop, you probably cannot install Windows 7 due to unsupported hardware. New CPUs do not allow installation of Windows 7 and also the recent Meltdown and Spectre exploits will never be patched for new CPUs on Windows 7.

[WillyT1998]

I would say to go to your BIOS and start Windows up from USB. From there you can custom your install and format the HDD and just load Win7 on there.

[ocd_eddie]

Never ever downgrade, you're opening yourself up to a whole world of pain in terms of security vulnerabilities