Outdated drivers might cause this issue.
Windows 7 relies heavily on User Account Control (UAC). Simply double-clicking the Rufus executable may not grant it the deep hardware access it needs. Close Rufus entirely. Locate the Rufus application file ( .exe ). Right-click the file and select . Click Yes if a UAC prompt appears asking for confirmation. rufus access to device denied windows 7
Open and navigate to the folder where rufus.exe is saved. Right-click on the Rufus executable file. Select Run as administrator from the context menu. Click Yes if a UAC prompt appears. 2. Disable Antivirus and Real-Time Protection Outdated drivers might cause this issue
Rufus requires low-level, exclusive access to your USB drive to format it and write the master boot record (MBR) or partition scheme. On Windows 7, this access is frequently blocked by: Close Rufus entirely
If the error persists, the issue may be with the USB drive itself. It might have a corrupted partition table, a damaged file system, or a hidden write-protection lock. We can fix this using Windows' built-in tools.