Syssetup.dll Updatepnpdevicedrivers

Syssetup.dll Updatepnpdevicedrivers

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How to use syssetup.dll updatepnpdevicedrivers to scan for new hardware in Windows

If you have installed new drivers for your devices using SetupCopyOEMInf.exe or other methods, you may want to force Windows to scan for hardware changes and load the new drivers without rebooting. One way to do this is to use the syssetup.dll updatepnpdevicedrivers command.

Syssetup.dll is a system file that contains many functions related to system setup and configuration. One of these functions is UpdatePnpDeviceDrivers, which can be called from the command line using RunDll32.exe. This function will trigger a Plug and Play (PnP) enumeration of all devices and install any drivers that are available in the locations specified by the DevicePath registry key.

To use this command, you need to open a command prompt window with administrator privileges and type the following:

RunDll32.exe Syssetup.dll,UpdatePnpDeviceDrivers

Note that the case of the letters is important and must be as shown above. You can also use this command in a batch file or a VBScript if you want to automate the process.

This command will scan for new hardware and update the drivers without requiring a reboot. However, some devices may still need a reboot to function properly. You can check the Device Manager to see if there are any devices with yellow exclamation marks or red crosses, indicating that they have problems or are disabled.

If you want to learn more about this command and other functions in syssetup.dll, you can refer to these sources:

Scan for new hardware using a bat file - Stack Overflow

Forcing PnP Enumeration after Install - Device Drivers - MSFN

Sysprep and DevicePath - why won't drivers install - MSFN

We hope this article was helpful and informative. If you have any questions or feedback, please leave a comment below.

How to change the DevicePath registry key

The DevicePath registry key is a string value that contains one or more paths where Windows will look for drivers when scanning for new hardware. By default, this key is set to %SystemRoot%\\\\inf, which is the folder where Windows stores the default drivers. You can add more paths to this key if you want to include other locations where you have stored your custom drivers.

To change the DevicePath registry key, you need to open the Registry Editor and navigate to the following location:

HKEY_LOCAL_MACHINE\\\\SOFTWARE\\\\Microsoft\\\\Windows\\\\CurrentVersion

Right-click on the DevicePath value and select Modify. In the Value data box, you can append more paths separated by semicolons (;). For example, if you have your drivers on a USB drive with the letter E:, you can add E:\\\\Drivers to the end of the existing value. Make sure you do not delete or modify the original %SystemRoot%\\\\inf path.

Click OK to save the changes and close the Registry Editor. You may need to restart your computer for the changes to take effect.

Advantages and disadvantages of using syssetup.dll updatepnpdevicedrivers

Using syssetup.dll updatepnpdevicedrivers has some advantages and disadvantages compared to other methods of updating drivers. Here are some of them:

Advantages

It is a simple and quick way to scan for new hardware and update drivers without rebooting.

It does not require any additional software or tools.

It can be used in scripts or batch files to automate the process.

Disadvantages

It may not work for all devices or drivers. Some devices may still need a reboot or manual installation.

It may cause some instability or errors if the drivers are not compatible or corrupted.

It may overwrite some existing drivers that are working fine.

You should always backup your system and create a restore point before using this command or any other method of updating drivers. You should also check the compatibility and reliability of the drivers before installing them.

Example of a batch file or a VBScript that uses syssetup.dll updatepnpdevicedrivers

If you want to use syssetup.dll updatepnpdevicedrivers in a batch file or a VBScript, you can use the following examples as templates. You may need to modify them according to your needs and preferences.

Batch file example

@echo off

rem This batch file will copy the drivers from a USB drive to a local folder and then run syssetup.dll updatepnpdevicedrivers

rem Change the drive letter and folder names as needed

rem Make sure you have administrator privileges

echo Copying drivers from USB drive...

xcopy E:\\\\Drivers C:\\\\Drivers /s /e /y

echo Running syssetup.dll updatepnpdevicedrivers...

RunDll32.exe Syssetup.dll,UpdatePnpDeviceDrivers

echo Done.

pause

exit

VBScript example

' This VBScript will copy the drivers from a USB drive to a local folder and then run syssetup.dll updatepnpdevicedrivers

' Change the drive letter and folder names as needed

' Make sure you have administrator privileges

Option Explicit

Dim objShell, objFSO

Set objShell = CreateObject(\"WScript.Shell\")

Set objFSO = CreateObject(\"Scripting.FileSystemObject\")

WScript.Echo \"Copying drivers from USB drive...\"

objFSO.CopyFolder \"E:\\\\Drivers\", \"C:\\\\Drivers\", True

WScript.Echo \"Running syssetup.dll updatepnpdevicedrivers...\"

objShell.Run \"RunDll32.exe Syssetup.dll,UpdatePnpDeviceDrivers\", 0, True

WScript.Echo \"Done.\"

WScript.Quit ec8f644aee