SSD has disappeared from bios and from Windows, Computer boots off my hardrive. SSD seems as it vanished

One day, I turned on my pc and when it booted up it was running off the hard drive and not the ssd. It was running of the ssd before this and was always the first boot option. When I turned it off and back on again to open bios, the ssd did not show up as a boot option. So when I did run it with the hard drive there was no sign of the ssd in windows or anything. Looking for a fix, Please and Thank you for your help
Reply to Willy Wonka
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More about ssd disappeared bios windows computer boots hardrive ssd vanished
  1. Make sure the connections to the SSD are firm inside of the computer. What kind of SSD is it?
    Reply to Deweedos
  2. Deweedos said:
    Make sure the connections to the SSD are firm inside of the computer. What kind of SSD is it?


    It is a San disk SSD plus 500 GB. I did make sure that all connection are firm. I also tried switching the different power cables to it but it is still not working.
    Reply to Willy Wonka
  3. 1. Since the system boots to the OS with only the HDD connected (that's right, isn't it?)...can we assume the HDD contained the original OS which you cloned to the SSD?

    2. Or did you originally fresh-install the OS (what OS?) onto the SSD?

    3. With both the SSD & HDD connected, could you send in a screenshot of Disk Management after the system boots?

    4. I guess you haven't been able to test the SanDisk SSD with SanDisk's diagnostic program since it's not detected in the system? (Not detected in Device Manager, right?). See...https://kb.sandisk.com/app/answers/detail/a_id/15108/~/sandisk-ssd-dashboard-support-information

    5. Do you have a USB external enclosure in which to install the SSD and connect it as a USB device?
    Reply to ArtPog
  4. ArtPog said:
    1. Since the system boots to the OS with only the HDD connected (that's right, isn't it?)...can we assume the HDD contained the original OS which you cloned to the SSD?

    2. Or did you originally fresh-install the OS (what OS?) onto the SSD?

    3. With both the SSD & HDD connected, could you send in a screenshot of Disk Management after the system boots?

    4. I guess you haven't been able to test the SanDisk SSD with SanDisk's diagnostic program since it's not detected in the system? (Not detected in Device Manager, right?). See...https://kb.sandisk.com/app/answers/detail/a_id/15108/~/sandisk-ssd-dashboard-support-information

    5. Do you have a USB external enclosure in which to install the SSD and connect it as a USB device?


    Thank you for your help. The ssd has a different version of windows than the hard drive. The hard drive has a 32- bit version of windows 7 but the ssd has a 64-bit version of windows 7. I have not been able to test the ssd because it is not being recognized by bios or in the device manager. I do not have a usb large enough to contain all of the data that the ssd had, but if i did how would i transfer the data if the ssd is not being recognized by anything? I thought maybe the sata wire or port had gone bad but switching with working wires and working ports does not change anything. Thanks
    .
    Reply to Willy Wonka
  5. I was hoping that if the SSD could be connected as a SECONDARY drive in the system or in another PC (either internally-connected or as a USB external drive) and booting to HDD that contains a viable OS, that there might - just might - be a chance to at least test the SSD with a SSD diagnostic program, preferably with SanDisk's program to determine whether you're dealing with a defective disk. We've experienced that anomaly more than once when a drive is not listed in Device Manager and Disk Management. And in one more than one case we determined the problem was NOT a defective drive but some other issue. It's just one of the FIRST troubleshooting steps we take when trying to diagnose a problem such as the one you're experiencing, i.e., to determine early-on whether the problem is or is not with a defective HDD or SSD.
    Reply to ArtPog
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