1

I am doing a clean install of Windows 8.1 on an old PC. It was purchased as download from Microsoft Store and written to and booted from a USB flash drive.

It went through all of these steps:

  1. Copying Windows Files
  2. Getting files ready for installation
  3. Installing features
  4. Installing updates

Then at "Getting finished" I am stuck at this stupid dialog box.

Please unplug the following external drive and click OK to restart your computer and finish installing Windows.

F:

How do I tell what physical drive this is? Can I drop to command prompt during installation? And is it safe to unplug it while powered on?

There is no external hard drive connected, none that I can see. There is no USB or FireWire drive connected externally. I think it sees one of the internal drives as external... in some weird way?!

  • Press Shift+F10 to bring up a command prompt, type the following command, and post here the output: wmic logicaldisk get caption,filesystem,size,volumename – and31415 May 28 '14 at 9:28
  • @and31415 Thanks! It's getting devices ready now. The problem was the USB flash drive that I used to boot and install the system from. The main problem was figuring out which one is the F drive. You can post your comment as an answer, I can update it with the output from the wmic command. – Samir May 28 '14 at 9:39
1

Solution

  1. Press Shift+F10 to bring up a command prompt.
  2. Type the following command:

    wmic logicaldisk get caption,filesystem,size,volumename
    

Example output

Caption  FileSystem  Size          VolumeName       
C:       NTFS        366997504     System Reserved  
D:       NTFS        20974428160   System           
E:       FAT32       80004153344   80 GB            
F:       FAT32       7721713664    ESD-USB          
G:       NTFS        53884649472   Datadisk N
H:       NTFS        315183595520  Backup           
I:       NTFS        59073925120   Datadisk         
J:       NTFS        130668294144                   
K:                                                  
L:                                                  
X:       NTFS        533640192     Boot             

Further reading

  • 1
    It was that "ESD-USB" device that was the problem. That's the bootable USB flash drive I created to install Windows. I just removed it and was then able to reboot and complete the installation. The Shift+F10 shortcut was the solution. I knew about the wmic command, I actually learned about that a few days ago when I needed it. But I had forgotten about the shortcut to drop to command prompt. Thanks again! – Samir May 28 '14 at 9:55
  • @sammyg You're welcome. The output leaves me wondering what are those K: and L: letters associated with. – and31415 May 28 '14 at 9:57
  • Answering myself: those letters should be associated with empty optical disk drives (ODDs). – and31415 Jul 26 '14 at 13:30

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.