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Check Free Space on All Drives with Get-PSDrive

A quick PowerShell table of used and free gigabytes across every local and mapped drive.

WindowsstoragediskpowershellLow risk
Run Get-PSDrive -PSProvider FileSystem and read the Used and Free columns (bytes) — the formatted one-liner converts them to GB.

01Command

Command
$ Get-PSDrive -PSProvider FileSystem | Format-Table Name, @{n='Used(GB)';e={[math]::Round($_.Used/1GB,1)}}, @{n='Free(GB)';e={[math]::Round($_.Free/1GB,1)}}

02What it does

When C: fills up mysteriously or a mapped network drive hits its quota, Get-PSDrive gives a compact answer faster than opening Explorer and hovering each drive. It covers fixed disks, USB drives, and mapped network shares in one table, unlike dir which only works per-path. Used and Free are raw bytes, so the calculated-property one-liner rounds them into readable GB. Note that this shows logical volumes: on a single physical disk split into C: and D:, each partition counts separately, which is usually what you actually care about.

03Risk

RiskLow risk

04Undo

✓No undo needed — this command does not change persistent state.

05Sources

  • Get-PSDrive
    Microsoft Learn · vendor-doc · 2026-09-17
    Evidence: Documents Get-PSDrive -PSProvider FileSystem and the Used/Free byte properties of drive objects.

Last verified: 2026-09-18 · Category: System & Settings

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