Aswvrt service is no longer active

C drive in your case is the system drive where all the boot data is

The error code is related to inaccessible boot device. Now there is a possibility that the BIOS has reset to IDE from SATA or vice versa

Step 1 Restart or turn on the PC, and look for a message such as "Press [X] to Go to Setup" or "Press [X] to Enter BIOS." Step 2 Follow the instructions on the boot screen to go to setup. Press "Ctrl-Alt-Del" to restart if the computer begins loading Windows before you can enter the BIOS. Step 3 Use the arrow pad to select an option such as "Advanced," "Integrated Peripherals" or "Main." Press "Enter." Step 4 Select "Storage Configuration," "Drive Configuration," "IDE Configuration" or a similar option, if available. Press "Enter." Step 5 Check setup for an option such as "Configure SATA As," "SATA Mode," "SATA Configuration" or "On-Chip SATA." Step 6 Press "Enter." Choose "IDE," "Compatible" or "ATA" from the menu and press "Enter" again. If pressing "Enter" doesn't bring up a menu, press "+" or "-" to change the parameters of the option. Step 7 Press "Esc" to return to the main menu, or select the "Exit" tab. Select the option to quit the BIOS and save changes. Step 8 Press "Enter" to restart the computer and boot the SATA drive as an IDE device.