Learn how to view, add, remove or edit the stored .NET users names and passwords on your system. Use the rundll32.exe or Control Userpasswords2 commands to access the key manager or the advanced tab.

Learn how to use the System File Checker tool (SFC.exe) to scan and restore missing or corrupted system files in Windows. Follow the steps to run the tool, view the scan results, and manually replace the corrupted files if needed.

Learn how to type commands to access various Control Panel tools in Windows, such as appwiz.cpl for Add/Remove Programs. See the list of commands and their corresponding tools in this Microsoft Support article.

Regsvr32 is a command-line utility to register and unregister OLE controls, such as DLLs and ActiveX controls in the Windows Registry. Learn the syntax, options, and common solutions for Regsvr32 errors in Windows 10 and other versions of Windows.

Learn how to use rundll32 printui.dll,PrintUIEntry command to install or delete printers without user interaction in Windows 2000 and Windows Server 2003. See examples, switches, and error messages for this method.

Learn how to fix common problems with User32.dll, a file that stores instructions for graphical elements in Windows. Find out how to use Windows Update, reinstall programs or drivers, or restore your system to resolve User32.dll errors.

Routine Description: This API opens the property pages for the specified device. This function can be executed by means of a rundll command line and will have the following form: rundll32.exe devmgr.dll, DeviceProperties_RunDLL <options> Arguments: hwndStub - Windows handle to receive any message boxes that might appear. hAppInstance - HINSTANCE.

Learn how to run System File Checker (sfc /scannow) in Windows 10 to check and fix problems with files on your computer. Follow the steps to update Windows, open Command Prompt as administrator, and type the commands.

Learn how to fix this error when you try to install, update or start a program or file. Follow the steps to check permissions, file location, corruption, blocking, and antivirus settings.

Fixes an Add Printer wizard issue that occurs when you run the Printui.exe file or the "rundll32 printui.dll,PrintUIEntry" command in a 64-bit version of Windows 7 or of Windows Server 2008 R2.