How to Check Disk Health with Windows Commands
A no-command way through Properties, a one-line PowerShell health check with a HealthStatus table to read the result, and CHKDSK for when you also want Windows to repair what it finds.
You do not need to wait for your disk to fail completely to know whether it has problems. Windows includes its own free tools capable of telling you the real state of your hard drive or SSD in under a minute — without installing anything from third parties.
The easiest way: no command needed
Open "This PC", right-click your disk and choose "Properties" → "Tools" tab → "Check" button. Windows will tell you if it detects any problem and offer to repair it. It is the same check as the commands below, just with windows instead of text.
The fast way: one PowerShell command
If you prefer an immediate answer, without opening any extra window:
# Health status of every installed disk
Get-PhysicalDisk | Select-Object FriendlyName, HealthStatus, OperationalStatus
You will sometimes see the word wmic recommended
in other guides for this same purpose — it is an older command that
Microsoft has been replacing with PowerShell for a while now. It
still exists on many machines, but Get-PhysicalDisk is
the current route and the one that will keep working going forward,
so it is what we recommend here.
How to read the result
| HealthStatus | What it means |
|---|---|
| Healthy | Everything is fine, no action needed |
| Warning | Signs are starting to appear — time to keep an eye on it and back up |
| Unhealthy | A real problem — back up urgently and consider replacing the disk |
CHKDSK: when you also want it to try repairing
The above tells you the general state, but does not repair anything. That is what CHKDSK (from "check disk") is for, a tool that has been part of Windows since the MS-DOS days and checks the disk's file system for specific errors.
chkdsk C: /f
The /f parameter tells it to fix any errors it finds,
not just show them. If the drive is in use (normal if it is where
Windows is installed), it will ask if you want to schedule the check
for the next restart — accept, and it will run automatically before
the desktop loads.
Warning: there is also the /r
parameter, which additionally looks for physically damaged sectors —
much more thorough, but also much slower (it can take several hours
on a large disk). There is no need to use it unless you already have
clear signs something is wrong; for a routine check, /f
is enough.
Tip: if your disk is an SSD, running CHKDSK with
/r repeatedly is neither necessary nor advisable —
unlike a mechanical disk, an SSD has no physical sectors to "look
for" in the same way, and the full scan only adds unnecessary wear
without providing any additional relevant information.
If the result is not good
Before anything else, make a backup of what matters — it is the step you cannot skip, whatever happens afterwards. If you use an SSD, our guide on signs your SSD is failing helps you confirm whether it is worth thinking about replacing it. If the disk has simply stopped appearing in the system, the situation is different — we explain it in what to do when your hard drive or SSD does not show up.
Worth keeping in mind: a "Healthy" result or no errors in CHKDSK does not guarantee the disk will last forever, but it does rule it out as the cause of current performance or stability problems — with that, you can focus your search elsewhere if you were still in doubt.
Frequently asked questions
Could this command delete my files by mistake?
No. Both Get-PhysicalDisk and CHKDSK are designed to check and, at most, repair file system errors — they do not delete personal files. The only real risk would come from an already existing physical fault in the disk, not from the command itself.
How often should I check my disk's health?
There is no need to do it often if you notice no symptoms. A check every few months, or as soon as you notice unusual slowness, odd sounds (on mechanical disks) or files that take long to open, is more than enough.
What is the difference between this command and using a manufacturer's tool like Samsung or Western Digital?
Each manufacturer's tools usually give more detailed information specific to their own disk model (temperature, hours of use, write cycles), while Windows' tools give a general diagnosis valid for any brand. For a first look, Windows' tools are enough.
Does a HealthStatus of 'Warning' mean the disk will fail soon?
Not necessarily imminently, but it is a signal worth paying attention to. It is the right moment to back up if you have not already, and to watch whether the status worsens over the following weeks.