flash drives

John Macco 0 Reputation points
2026-08-26T23:46:29.7733333+00:00

Is there a way to determine how many GB are on a flash drive?

Windows for home | Windows 10 | Devices and drivers
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  1. Senthil kumar 2,080 Reputation points
    2026-08-27T05:03:32.79+00:00

    Hi @John Macco

    Option 1:

    1. Plug in the flash drive
    2. Open This PC
    3. Look under Devices and drives You’ll see something like:
    4. USB Drive (E:) — 32 GB
    5. USB Drive (F:) — 64 GB

    Option 2:

    Win + X → Disk Management

    Find your USB drive in the list. It will show the exact GB capacity, even if the drive is unformatted.

    Open powershell then type below command.

    Get-PSDrive -PSProvider FileSystem

    Thanks.

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  2. Marcin Policht 104.4K Reputation points MVP Volunteer Moderator
    2026-08-27T00:08:01.5833333+00:00

    Yep - plug in the flash drive, open File Explorer, right-click the USB drive under “This PC,” and select Properties. The General tab will show the drive's Capacity, for example 31.9 GB.

    You can also open Settings > System > Storage > Advanced storage settings > Disks & volumes, select the USB drive, and view its size.

    If you want the most precise physical capacity, Disk Management is useful: press Win + X > Disk Management, find the USB drive, and look at its total disk size. This can also help identify whether the drive is actually 32 GB, 64 GB, 128 GB, etc.

    If the above response helps answer your question, remember to "Accept Answer" so that others in the community facing similar issues can easily find the solution. Your contribution is highly appreciated.

    hth

    Marcin

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  3. AI answer

    2026-08-26T23:46:40.96+00:00

    Yes. In Windows, the simplest ways are:

    1. Open File Explorer and select This PC.
    2. Find the USB flash drive.
    3. Windows shows the drive’s total size and free space there.

    If needed, a more detailed view is available in Disk Management:

    1. Right-click Start and choose Disk Management.
    2. Locate the USB drive in the disk list.
    3. Check the displayed capacity.

    If the number shown seems lower than the advertised size, that difference can be normal because drive manufacturers calculate size using 1000, while Windows uses 1024.

    AI-generated content may be incorrect. Read our transparency notes for more information.

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