DriverCove

Unknown Device in Device Manager

An Unknown Device is hardware Windows detected but can't name - because no driver is installed. The device itself tells you what it is through its Hardware ID; decoding that ID is the whole solution.

Quick checks first

1. Read the Hardware ID

Device Manager → right-click Unknown device → Properties → Details tab → Hardware Ids. You'll see something like PCI\VEN_8086&DEV_A370 or USB\VID_1A86&PID_7523. VEN/VID identifies the chip maker, DEV/PID the device model.

2. Check when it appeared

If the unknown device appeared after plugging something in, unplug it and see if the entry disappears - that identifies which physical device it is.

The Hardware ID you just found is the key: the next step is to decode it into a real device and install its driver - manually through the database, or automatically in one pass.

Fixing it manually

Identify and install by Hardware ID

  1. Copy the first Hardware Ids value from Device Manager.
  2. Paste it into our Hardware ID search - the decoder shows the vendor, the device name and every driver version that supports it.
  3. Pick the driver matching your Windows version and architecture, create a restore point and install it following the page instructions.
  4. In Device Manager: Action → Scan for hardware changes. The unknown device should get its real name.

Know the exact device model?

Paste the Hardware ID into the database search - the decoder shows the vendor, the device name and every driver release that supports it, per Windows version.

This whole problem IS identification. The Hardware ID is the answer: PCI\VEN_10EC&DEV_8168 decodes to a Realtek network controller, USB\VID_1A86&PID_7523 to a CH340 USB-serial chip, and so on. Our search decodes these IDs automatically.

Try for example: PCI\VEN_10EC&DEV_8168 · read the Hardware ID guide

Frequently asked questions

▸Is it safe to just ignore an Unknown Device?

Sometimes - if everything you use works. But it often means some function is dead: a card reader, a sensor, Bluetooth, a chipset component. Identifying it by Hardware ID takes a minute and tells you what you're missing.

▸Can the unknown device be identified without copying Hardware IDs?

Yes - the free scan identifies the hardware installed on your PC, including devices Windows can't name, and shows which drivers they need. Copying VEN/DEV codes is only necessary for the manual route.

Other common problems