1.    11 Aug 2016 #1
    Join Date : Aug 2016
    Posts : 1
    Windows 10

    Windows 10 Not Booting - No Splash Page & Flashing Black Cursor

    I'm presently stuck with a flashing cursor after my BIOS has loaded. I'm assuming there's an issue with my BIOS loading the OS. I'm typing this from work and I was up most all last night tinkering with my PC, so I apologize for any poor grammar or prose due to sleep deprivation. My ideal outcome would be a restoration of system. However, I would accept using an older backup or doing some form of refresh/re-install. I'd be happy to provide any additional information.
    Tower PC / Non-laptop
    Asus Z170K
    Intel Core i5 6600k
    16 GB of DDR4 RAM from GSKILL
    Asus NVIDIA GTX 1070 STRIX
    Samsung Evo Pro 950 NVMe via M.2 -- The OS is installed on this drive
    Generic DVD Drive
    Some 2 TB HD that I used to store games/files/media.
    Corsair PSU (not over-taxed, but I forgot the specs off the top of my head)
    Likely Cause:
    I downloaded the update a few days ago and did "Update and Restart" (or maybe "Update and Shutdown"). I was having issues being unable to launch VMPlayer, so after the initial update & reboot, I entered my BIOS settings (Asus Z170K), enabled virtualization, and then rebooted again to launch Windows. Upon reboot, I was stuck with the black flashing cursor. I am not getting to the Windows splash page at all. I am fairly confident this is not a video card or display issue.
    Things I have checked/done already:

    • My boot order is correct. I have my OS installed on a Samsung Evo 950 NVMe SSD on an M.2 slot and it had been functioning perfectly fine prior to the update. I also have a 2 TB HD on SATA and a typical DVD drive.
    • I am using the latest BIOS drivers, but I re-flashed it (which resets it to default/wiped my OC settings) to no avail.
    • In the BIOS, I have tried to: Disable fast boot, change CSM to both "Auto" and "Enable UEFI/Legacy" (may be a few words off on that setting), disable/re-enable virtualization, and a few other tweaks I can't think of without being at my BIOS.
    • I tried entering Ctr+Alt+Del four times to force a Windows boot to no avail. I read some posts where people had success loading Windows after using it four times.
    • I tried waiting on the cursor screen for roughly 90-120 minutes. As I have an Evo 950, my boots are typically extremely quick.
    • I created a repair drive:
      • The repair drive showed in my BIOS as both an UEFI and a typical/non-UEFI drive. I attempted to use both the UEFI and non-UEFI settings for all of these settings. The only exception would be that the non-UEFI boot did not have a prompt to go to my BIOS UEFI settings.
      • I attempted to use the "System Restore" settings. However, none were able to be located.
      • I attempted to use the "Startup Repair" settings. The UEFI setting said it could not work (or it may have said it found no problems - I cannot remember, but ultimately it provided no resolution), while the non-UEFI bootup just restarted my PC and sent it back to the boot order I had configured at the time. Similar to the UEFI boot, this did not provide a resolution.
      • I attempted to use the Command Prompt from the recovery media (syntax may be wrong below, but the commands ran successfully); these were all ONLY run on the UEFI USB:
        • I successfully ran sfc /scannow - no resolution
        • I successfully ran bootrec.exe /fixboot - no resolution

        • I successfully ran bootrec.exe /scanOs - My OS was identified on drive F (which is the SSD that has Win10 installed)
        • I successfully ran bootrec.exe /rebuildbcd - no resolution
        • I successfully ran bootrec.exe /fixmbr - no resolution
        • After running all of these commands, I was no longer able to boot into the UEFI boot of my recovery USB.
          • I suspect I may have ran the various bootrec commands in a bad order.
          • I ended up re-creating a new recovery media file on a different USB after the crash, but it did not resolve anything.

        • I used diskpart for a little bit, but I mostly did it to review the status on the drive. I was able to select/do anything I wanted, but I didn't take any real actions using it.
          • Is it possible to browse to my Windows installation in the C:\Windows directory and use that as image to boot from?

      • I attempted to use the Startup Settings to go back to a previous build. However, this option did not work.
        • I did see a blurb on a Microsoft support site about being unable to do this within 10 days of upgrading to Windows 10 or the Windows 10 anniversary update.

      • I attempted to use the System Image Recovery. I do have an older backup I created with the Windows 7 backup tool on Windows 10, but I am unaware of any other backups. Refer to the "Alternate Solution" section for more information on that.

    Additional Information:

    • From the recovery media's command prompt, I was able to see that my SSD was on the "F:" drive, while the recovery OS shell/prompt was on ":X" (I think). From what I could tell, the partition was "Healthy" and it had all the proper data. This leads to me to believe that the file structure is still in tact.

    Alternate Possible Solution:
    I have a Windows 7-style backup (created on Windows 10) that I created on August 26th. I would very much prefer to avoid using this. However, I also have a problem with this method of recovery. I have the backup file stored on my NAS. From the "browse" folder, I can get to the file where it says to point to the location where the image is stored. However, it is not accepting my credentials to even access my backup. I have another Windows 10 box at my apartment and I logged out and re-logged into the NAS to validate that my credentials are indeed correct. The NAS is running on a Linux flavor, so I don't know if there are complications with obtaining the file from a different OS. I would try to move it to my other Windows 10 box, but that computer's HD is only 750 GB, and my recovery file is .99 GB. I also have a 1 TB external HD with USB 3.0, but it's functionally available space is in the avenue of 922 GB. Is there anyway I can manually trim some files or split the recovery file up?
    I would also not mind losing all my Windows settings, but I'd really like to keep my files/data if possible. That's my overall goal. I am going to look into running my Kali or some sort of Ubuntu live boot and see if I can toss most of it onto my External HD if I need to nuke my OS. I'm also concerned if I can find where I actually wrote down my Windows CD Key.
    Any help would be appreciated. Thanks!
    I eventually solved this myself, but unfortunately, I'm not specifically sure what fixed it. I ended up having to unplug all my SATA drives (HDD and DVD-RW). I think the problem was that the various Windows recovery tools were ignoring the boot order in favor of SATA drives over the M.2 SSD. Once I removed those, I had more recovery options available from the recovery media. Although none of the options or commands I entered seemed successful, the problem somehow went away on a random accidental reboot.
    Last edited by scjohnson1988; 16 Aug 2016 at 08:30.
      My System SpecsSystem Spec


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