How to fix unknown device problem on Windows 7/ 8/ 8.1/ 10, in this quick video learn how to easily find drivers for Unknown Devices in Windows.
If you’ve just installed Windows and the Device Manager is loaded with “Unknown devices” or “Other devices” that are in an error state or without any drivers installed, don't fret! You’re only a few clicks away from ascertaining all of the information you need to identify the device and download its drivers.
Windows will usually brand all of the unrecognized devices in Device Manager with a black exclamation point (!) on a yellow sign. If you’re lucky, the device’s name will be listed and you can simply search for its drivers. Otherwise, the device will most likely be labeled an “Unknown device,” which is not very helpful.
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Windows Installer 4.5 and later can install multiple installation packages using transaction processing . If all the packages in the transaction cannot be installed successfully, or if the user cancels the installation, the Windows Installer can roll back changes and restore the computer to its original state. The installer ensures that all the packages belonging to a multiple-package transaction are installed or none of the packages are installed.
Beginning with Windows Installer 5.0, a package can be authored to secure new accounts, Windows Services, files, folders, and registry keys. The package can specify a security descriptor that denies permissions, specifies inheritance of permissions from a parent resource, or specifies the permissions of a new account. For information, see Securing Resources. The Windows Installer 5.0 service can enumerate all components installed on the computer and obtain the key path for the component. For more information, see Enumerating Components. By Using Services Configuration, Windows Installer 5.0 packages can customize the services on a computer. Setup developers can use Windows Installer 5.0 and Single Package Authoring to develop single installation packages capable of installing an application in either the per-machine or per-user installation context.
Windows Installer enables the efficient installation and configuration of your products and applications running on Windows. The installer provides new capabilities to advertise features without installing them, to install products on demand, and to add user customizations.
Windows Installer 5.0 running on Windows ServerВ 2012 or WindowsВ 8 supports the installation of approved apps on WindowsВ RT. A Windows Installer package, patch, or transform that has not been signed by Microsoft cannot be installed on WindowsВ RT. The Template Summary property indicates the platform that is compatible with an installation database and in this case should include the value for WindowsВ RT.
Windows Installer is intended for the development of desktop style applications.
This documentation is intended for software developers who want to make applications that use Windows Installer. It provides general background information about installation packages and the installer service. It contains complete descriptions of the application programming interface and elements of the installer database. This documentation also contains supplemental information for developers who want to use a table editor or a package creation tool to make or maintain an installation.