Use the package's intended installation method
If the device maker provides a supported installer, follow that maker's instructions. If the maker provides extracted driver files for Windows, Device Manager's Browse my computer for drivers option can point to their folder. Do not extract or run an unverified download merely because it contains an INF file.
This procedure is for a known, compatible package on Windows 11; Windows 10 wording can differ. You need the exact device identity, the supported Windows release, administrator approval where prompted, and an alternate connection or control method if replacing a network, input, or display driver.
Install one identified device
Save your work and place the official package on local storage. Note the current provider and version in Device Manager before proceeding, and check the maker's directions for restart or prerequisites.
- Confirm the package matches the hardware ID or exact model and the Windows release and architecture.
- For a manufacturer installer, run the official installer and follow its prompts. Do not substitute a different setup file from an unrelated package.
- For a maker-supplied extracted driver folder, right-click Start → Device Manager, locate the intended device, right-click it → Update driver → Browse my computer for drivers, and select the folder as directed.
- Review Windows' result. If asked to restart, do so after saving work; do not interrupt the installation.
- Open Properties → Driver again and test the exact function that motivated the update.
Interpret what Windows reports
The visible provider or version may change, and the original device function should work as expected. A message that Windows already has the best available driver describes its search result; it does not verify that a particular manufacturer's separate package has been installed or that the symptom has been solved.
If Windows refuses the folder, verify it actually contains the maker's files for this device and Windows version. If an installer reports an unsupported system, stop and compare the package's requirements rather than forcing it. If an update succeeds but the symptom remains, investigate non-driver causes such as power, settings, connection, or hardware.
Keep the way back visible
If the device worsens immediately afterward, use Properties → Driver → Roll Back Driver if available; that option is not always present. The parent update guide and its testing-and-recovery page describe how to compare before and after symptoms. For an essential device you cannot control afterward, use your maker's recovery instructions or qualified support.
Caution: Never bypass a signature warning or disable system security to make a mismatched package install.
Example: an add-in network card
A desktop with a separately purchased Ethernet card may have a PC support page listing only the original built-in adapter. Identify the card by its actual model or hardware ID, then check that card maker's Windows support list. If it supplies an installer, use that installation method. If it supplies a driver folder, use Device Manager's browse option with the supported folder; these methods are not interchangeable simply because both downloads come from the same site.
After restarting, check that the intended adapter is shown and connect to a known-working network. If the card is present but cannot reach only one destination, investigate network settings or that destination before blaming the installation. If the card is no longer detected, check its physical connection safely and consult the card maker instead of cycling through unrelated packages.