It seems like the Delete popup menu selection for your USB drive is missing on your Windows 7 machine, while it still appears for your C: drive. This issue could be due to various reasons, such as settings changes, file system errors, or drive permissions. Here are some steps you can take to troubleshoot and potentially resolve this issue: 1. Check Drive Permissions: - Make sure that you have the necessary permissions to delete files on the USB drive. Right-click on the USB drive, go to "Properties," and then to the "Security" tab to ensure you have the proper permissions. 2. Scan for File System Errors: - Use the built-in Windows tool called "Error Checking" to scan and fix any file system errors on the USB drive. To do...