However, some tools require a minimum of 8 GB, regardless of the CPU. Installing Windows 7 from a bootable USB requires a blank USB flash drive with at least 4 GB of space for a 32-bit processor or 8 GB for a 64-bit architecture. What You Need to make a bootable USB for Windows 7Ī Windows 7 USB boot requires the following items. Let’s see what items and tools you need for a Windows 7 USB boot. Moreover, newer computers don’t have CD/DVD drives, making a bootable USB your only viable option for installing Windows. Besides being more inconvenient, DVDs are more prone to damage than USB drives merely scratching them would render them unplayable. Bonus Tip: How to Recover Data if Windows 7 Won’t BootĪ Windows 7 iso bootable USB saves you the trouble of burning a Windows ISO file to a DVD (CDs don’t have sufficient storage).