You are called to troubleshoot a Windows 10 desktop where a recently attached USB external hard drive is not detected. Device Manager lists the drive under Universal Serial Bus controllers with a yellow exclamation mark and the message "This device cannot find enough free resources (Code 12)". Which initial action should you take to begin resolving the problem?
Disconnect every USB device and reconnect them one at a time until the error disappears.
Restart the computer to let Windows reallocate hardware resources.
Review the device's status and resource usage in Device Manager to locate any conflicts.
Roll the system back to a previous restore point created before the drive was attached.
Opening the device's properties in Device Manager lets you review the Resources and Driver tabs for IRQ, I/O, or DMA conflicts and update or reinstall drivers as needed. Because Code 12 resource errors are detected and managed within Device Manager, examining the conflict there is the fastest way to identify and correct the problem before trying more disruptive steps such as unplugging hardware or performing a system restore.
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CompTIA A+ 220-1102 (V14)
Software Troubleshooting
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