Sarah leaned forward, her coffee forgotten. “Come on, come on…” she whispered, tapping the spacebar. Nothing.
Then, like a bad dream wrapped in a QR code, the screen flipped to blue: Your PC ran into a problem and needs to restart. We’ll restart for you. The VM restarted. Same blue screen. Loop. Loop. Loop.
Then: “Driver installed successfully.”
Sarah attached the Windows 10 ISO to the VM’s virtual CD-ROM. She booted into the recovery environment— Repair your computer > Troubleshoot > Command Prompt . Then she ran the cavalry: vmware windows 10 inaccessible boot device
That was the key. Windows 10 had loaded its update, rebooted, and lost its mind—or more precisely, lost its storage driver. A classic race condition: Windows tried to load the disk driver milliseconds after it had already given up on the boot volume.
She chose the latter.
The VMware splash screen appeared. The swirling dots. Five seconds. Ten seconds. Sarah leaned forward, her coffee forgotten
Outside, the night was quiet. But inside the datacenter, one little VM was booting happily again—unaware it had almost died for a driver’s vanishing act. Always keep a recovery ISO and driver floppy image nearby. In the world of VMware and Windows 10, the boot device is never truly inaccessible—it’s just waiting for the right driver to show it the way home.
“The virtual disk is fine,” she said, checking the datastore. “So the guest can’t see the boot disk.”
She navigated to a USB drive she had pre-loaded (she wasn’t a rookie) with the VMware Tools floppy image—specifically the vmwscsi.inf driver for the LSI Logic SAS controller. Then, the magic incantation: Then, like a bad dream wrapped in a
drvload E:\win10\amd64\vmwscsi.inf A pause. A blink of the cursor.
She exited the command prompt and clicked “Continue to Windows 10.”
She killed the loop and powered off the VM. Her mind raced through the possible causes. She hadn’t changed any boot order settings. No new disks. Just a standard Windows Update. But this error— inaccessible boot device —meant one thing in VMware: the virtual hard disk controller had changed, or the driver for it had vanished into the digital abyss.
She exhaled, leaned back, and typed a single entry into the change log: “VM restored. Root cause: Windows Update nuked storage driver. Note to self: convert VM to PVSCSI and inject drivers before next Patch Tuesday.”