If you’re seeing the "Access to the device is denied" error in Rufus while on Windows 7, it usually means a background process or security setting is blocking Rufus from gaining exclusive control of your USB drive. Quick Fixes
typically stems from external software or system settings blocking low-level drive access rufus access to device denied windows 7
Try an older Rufus version if the latest fails on Windows 7. If you’re seeing the "Access to the device
cmd → right-click → Run as Administrator).