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Old June 14th, 2018, 03:50 AM
sunrise365 sunrise365 is offline
Join Date: Jul 2005
Posts: 44
Unmountable Boot Drive

I have an Acer laptop. The original operating system was 8.1 but did take advantage of the free download of 10 when offered. There has been no problems except this morning. Started as usual and got the message "Unmountable boot drive" and system would attempt to fix. No such luck, in poking around for a cure, tried the start and immediately turned off when Acer showed to prompt the computer on 4th try to send me to a starting error. Still got the same boot message and then a blank page. A couple places mention downloading Win 10 media installation on a USB (no CD drive) which will boot and correct? This is where I am fuzzy. Will it erase everything? Does this sound right? Is there another way to correct this issue that is easier and/or safer? Since I am getting a blank page there is no prompt.
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Old June 14th, 2018, 03:26 PM
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Murf Murf is offline
Join Date: Oct 2001
O/S: Windows XP Pro
Posts: 17,405
Yes in order to fix you will need to boot from a Win 10 DVD or the USB, since you indicate no DVD then you will need to make a USB Bootable, so you can repair it.

Yes you will need the Windows 10 Media Creation Tool, which you can download HERE:


1. First, shut down your Computer by pressing the Power button
2. Insert the USB Drive containing Windows Media Creation tool into the USB port of your Computer and start your Computer by pressing on the Power button.
3. As soon as your computer starts to boot, pay close attention to the screen and immediately press the suggested Function Key to Enter the BIOS screen of your Computer.
Note: The Function Key to enter BIOS varies from computer to computer, it can range from F8, F9, F12 to Escape and Delete keys. Check with the manufacturer of your computer in case the key is not indicated.
4. On the next screen, select Boot from USB Option.
5. Next, select the USB Drive that you wish to boot from (USB drive that contains Media Creation Tool)
6. Your Computer will now boot from the USB drive
7. Next, click on the Repair your computer option located at the lower-left corner of your screen.
8. On the next screen, click on Troubleshoot.
9. On the Troubleshoot Screen, click on Advanced options.
10.On the Advanced Options screen click on Automatic Repair (May also appear as Startup Repair) and click on Next.
11. On the next screen, click on Windows 10 or the operating system that is currently installed on your Computer.

12. Wait patiently as the utility attempts to repair the files. It can take a long time for the repair process to be over. It is really important that you wait patiently and do not try to end or abort the process.
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