If Windows cannot run CHKDSK because it is stuck in a boot loop, you can boot with Windows installation media, select "Repair your computer" -> Troubleshoot -> Advanced options -> Command Prompt, and run the command there. Alternatives to CHKDSK If CHKDSK fails, you can try:
This tool can read SMART data, remap bad sectors, and perform deep scans that CHKDSK cannot.
Even the perfect chkdsk on external drive fix cannot solve everything. Here are complementary tools: chkdsk on external drive fix
CHKDSK is a system utility that scans the file system on your drive to ensure its integrity. It can fix logical file system errors (like incorrect file sizes) and identify physical "bad sectors" that should no longer be used for storing data. Before You Start: A Critical Warning
Your external drive holds memories and work that cannot be replaced. CHKDSK, used correctly, is often the difference between a $10 software fix and a $1,000 data recovery bill. If Windows cannot run CHKDSK because it is
Type the following command, replacing X: with your actual drive letter: chkdsk X: /f /r : Fixes errors on the disk.
It is normal for the scan to seem "stuck" at 10% or 80% for a long time if the drive is large or has many errors. Do not unplug the drive mid-process. If you prefer not to use the command line: Right-click your external drive in File Explorer . Select Properties > Tools tab. Click Check under the "Error checking" section. Select Scan and repair drive . Here are complementary tools: CHKDSK is a system
: Tells CHKDSK to locate bad sectors and recover readable information. (Note: /r automatically includes the functions of /f ). Step 3: Wait for the Process to Complete
diskpart list disk select disk X attributes disk clear readonly exit