How to Find Drivers for Unknown Devices in Windows 11

By Iikka Isosaari · Windows 11 · Updated September 26, 2026

After reinstalling Windows, Device Manager may show Unknown device or hardware with a yellow warning symbol.

You do not need to guess what it is.

Windows exposes hardware identifiers that can help identify the exact device.

Open Device Manager

Right-click Start and select Device Manager.

Find the device with the warning icon.

Right-click it and choose:

Properties → Details

Select:

Hardware Ids

You may see something like:

PCI\VEN_8086&DEV_XXXX

Understanding the ID

For PCI devices:

VEN identifies the vendor.
DEV identifies the device.

For USB hardware, you may see:

USB\VID_XXXX&PID_XXXX

Here:

VID means Vendor ID.
PID means Product ID.

Searching these identifiers can reveal the manufacturer and device model.

Where to Get Drivers

Prefer drivers from:

your PC manufacturer's support page
your motherboard manufacturer's website
the component manufacturer

Examples include Intel, AMD, NVIDIA, Realtek, MediaTek, and Qualcomm.

Avoid random driver-download websites whenever possible.

Important Drivers After a Fresh Install

Typical priorities are:

chipset
network/Wi-Fi
Bluetooth
graphics
audio
storage/controller drivers

Windows Update can install many drivers automatically, but manufacturer packages may contain newer features or device-specific configuration.

References

Microsoft: hardware IDs

Questions about How to Find Drivers for Unknown Devices in Windows 11

How can I identify an Unknown device after reinstalling Windows?

Open Device Manager, select the device's Properties and copy its Hardware Ids. Match the full ID and exact computer or motherboard model against the manufacturer's support page.

Should I download drivers from generic driver sites?

Prefer the PC, motherboard or component manufacturer's official support pages. A similar device name does not guarantee that an arbitrary package matches your hardware revision.