Open Task Manager ( Ctrl + Shift + Esc ) → End explorer.exe . Don't worry – you can restart it later via File → New Task → explorer.exe .
The most critical finding in this review is the correlation between Windows 7 and USB 3.0+ drivers. rufus access to device denied windows 7
The error "Rufus access to device denied" on Windows 7 stems primarily from four sources: process contention, registry-based write protection, group policy restrictions, or partition corruption. The most reliable fix is diskpart cleaning, though it is destructive. For non-destructive resolution, administrators should verify StorageDevicePolicies\WriteProtect and disable removable storage write restrictions via Group Policy. Rufus developers may consider a fallback to raw SCSI passthrough (IOCTL_SCSI_PASS_THROUGH) to bypass Windows lock mechanisms in future legacy builds. Open Task Manager ( Ctrl + Shift + Esc ) → End explorer
Ensure your ISO file is not stored on the same USB drive you are trying to format. Move the ISO to your local hard drive (e.g., Desktop) before starting. The error "Rufus access to device denied" on