bios detection

About this tag
The bios detection tag covers issues where hardware is recognized by the system BIOS but not by Windows, or where BIOS detection is a key step in troubleshooting connectivity problems. Common themes include external hard drives and optical drives that appear in BIOS but fail to be detected in Windows Explorer, Disk Management, or other system tools. Users often report that disconnecting the device allows the PC to boot normally, and reconnecting after boot may or may not restore recognition. The tag also includes scenarios where BIOS detection helps rule out hardware failure, and where drive letter conflicts, driver issues, or interface problems (USB, eSATA, FireWire) are suspected. These discussions focus on Windows 7 and related troubleshooting steps.
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    Windows 7 External HDD to SATA fail

    Hello guys. So this is what happened: I had a new external HDD WD My Book Essential USB 3.0 (2TB) 6 month ago. All was good until two days ago. I rebooted my computer and I won't boot up. After disconnecting WD HDD it work perfectly But after I turned my PC off, and tried to turn it on...
    • bullinc
    • Thread
    • amd bios detection boot issues data loss data recovery disk management external drive fire safety hard drive failure hdat2 live boot mbr repair power cable s.m.a.r.t error sata cable tech support usb issues wd my book windows 7 wondershare
    • Replies: 5
    • Forum: Windows Hardware
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    Windows 7 External HDD not always recognized

    I have been having an on-going issue for some time with my external WD My Book. There are times when it is not being recognized by Windows 7(pro). It has three interface options (fire wire, esata, and USB). I have tried all three at one time or another, finally settling on the eSATA interface...
    • bimfi
    • Thread
    • backup bios detection esata external drive firewire nuisance recognition shutdown issues usb wd my book windows 7
    • Replies: 2
    • Forum: Windows Hardware
  3. B

    Windows 7 External HHD not always recognized

    I have been having an on-going issue for some time with my external WD My Book. There are times when it is not being recognized by Windows 7(pro). It has three interface options (fire wire, esata, and USB). I have tried all three at one time or another, finally settling on the eSATA interface...
    • bimfi
    • Thread
    • backup bios detection device intermittency devices esata external drive firewire hardware detection shutdown issues storage issues system hang troubleshooting usb usb interface wd my book windows 7 windows issues
    • Replies: 1
    • Forum: Windows Hardware
  4. A

    Windows 7 DVD RW not working, but shown in My Computer

    i have a LG GSA H20N ATA DVD RW. im using windows 7 RC. and it worked fine for some time after installing the x64 OS, but suddenly from now the CD/DVD is not being read. Whenever i put a CD/DVD into the drive, the light blinks for sometime and goes blank. When i double click the drive in...
    • ankdoz
    • Thread
    • bios detection computer detection data read error drive issues driver issues dvd-rw hardware issues lg gsa h20n upper filters windows 7
    • Replies: 2
    • Forum: Windows Hardware