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How to Solve the Unmountable Boot Volume Error on the PC | System Tools

The error message "Unmountable Boot Volume" can appear for several reasons, such as file system failure or problems with the hard drive or partition on which Windows is installed. In this way, the system is unable to mount the disk and access the files necessary to start the computer and, as a result, the PC cannot be turned on.

In the following tutorial, check out three ways to solve the problem on your computer. The procedure was performed on a Windows 10 PC, but the tips also apply to previous versions of the Microsoft system.

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Learn how to fix the Unmountable Boot Volume flaw in Windows 10 Photo: Carolina Oschendorf / TechTudoLearn how to fix the Unmountable Boot Volume flaw in Windows 10 Photo: Carolina Oschendorf / TechTudo

Learn how to fix the Unmountable Boot Volume flaw in Windows 10 Photo: Carolina Oschendorf / TechTudo

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Start Windows recovery mode

Step 1. On another computer, create a recovery disk on Windows 10. If you prefer, you can also make a bootable flash drive with Rufus;

Make a Windows 10 bootable flash drive Photo: Felipe Vinha / TechTudoMake a Windows 10 bootable flash drive Photo: Felipe Vinha / TechTudo

Make a Windows 10 bootable flash drive Photo: Felipe Vinha / TechTudo

Step 2. Start the PC using the system installation recovery disk or flash drive and select "Repair your computer";

Access the system recovery tools Foto: Reproduo / Helito BeggioraAccess the system recovery tools Foto: Reproduo / Helito Beggiora

Access the system recovery tools Foto: Reproduo / Helito Beggiora

Step 3. Press the "Troubleshooting" option;

Open the indicated option Photo: Reproduo / Helito BeggioraOpen the indicated option Photo: Reproduo / Helito Beggiora

Open the indicated option Photo: Reproduo / Helito Beggiora

Step 4. Then, open the "Command Prompt".

Open the Command Prompt Foto: Reproduo / Helito BeggioraOpen the Command Prompt Foto: Reproduo / Helito Beggiora

Open the Command Prompt Foto: Reproduo / Helito Beggiora

In the Command Prompt window, enter "chkdsk / r c:" (without quotes). Remember to replace "c:" with the letter of the drive on which the system is installed. After running the disk check, close the Command Prompt and restart your computer.

Enter the command indicated Photo: Reproduo / Helito BeggioraEnter the command indicated Photo: Reproduo / Helito Beggiora

Enter the command indicated Photo: Reproduo / Helito Beggiora

If the previous procedure does not solve your problem, return to the Command Prompt and enter "bootrec / fixboot" to repair the master boot record (MBR). Then, close the Command Prompt and restart your computer.

Enter the command indicated Photo: Reproduo / Helito BeggioraEnter the command indicated Photo: Reproduo / Helito Beggiora

Enter the command indicated Photo: Reproduo / Helito Beggiora

Perform automatic repair

Step 1. If the problem persists, go back to the Windows recovery tools and select "Startup Repair";

Run the boot repair tool Photo: Reproduo / Helito BeggioraRun the boot repair tool Photo: Reproduo / Helito Beggiora

Run the boot repair tool Photo: Reproduo / Helito Beggiora

Step 2. Finally, press "Windows 10". The tool will do some checks and, if necessary, make corrections automatically. Your computer will automatically restart when the process is finished.

Click on the system to be repaired Photo: Reproduo / Helito BeggioraClick on the system to be repaired Photo: Reproduo / Helito Beggiora

Click on the system to be repaired Photo: Reproduo / Helito Beggiora

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