subject: OSetup.dll 2010 Error Fix - How To Repair OSetup.dll Errors On Your 2010 PC [print this page] OSetup.dll is a file used by Windows to help control the installation and operation of Microsoft Office. Although this file is used extensively on most Windows computers, the fact is that it's continually being damaged and corrupted - leading to numerous errors and problems for Windows computers. If you are seeing OSetup.dll 2010 errors, then you need to repair the problems that you're seeing quickly and reliably.
The errors which Osetup.dll will likely show include:
"X:outlookr.WWOsetup.DLL digital signature does not validate or is not present."
"Osetup.dll Not Found"
"This application failed to start because osetup.dll was not found. Re-installing the application may fix this problem."
"Cannot find [PATH] osetup.dll."
"The file osetup.dll is missing"
"Cannot start [Application]. A required component is missing: osetup.dll. please install [Application] again."
NOTE: "X" is a variable and it refers to your CD/DVD Drive.
The reason why OSetup.dll errors occur is because your computer cannot read the file in order to run. Not many people realize this, but each time you use the likes of Microsoft Office, or any other program on your PC, a series of "DLL" (Dynamic Link Library) files are being opened to help Windows control the various applications that it needs. All DLL files contain various functions & settings which different programs can call whenever they need them, allowing your PC to run as smoothly and reliably as possible. However, the problem is that because so many DLL files are being used at once, many Windows computers actually become erroneous as they are unable to read the files / settings which they need to run.
The way to fix OSetup.dll errors is to first manually start any installation you're trying to perform on your PC. This can be done by clicking on "Setup.exe" instead of the MSI program which is required. On top of that, it's also recommended you transfer the setup files to your computer's hard drive and run the installation from there.
One of the best ways to fix the OSetup.dll errors on your PC is to use a "registry cleaner" program on your PC to fix the various problems and errors which can form inside the registry database of your system. The registry database is a central storage facility for all the settings & options that Windows uses to run, and is continually being used to help all of your software read the files they need. Unfortunately, registry errors are a big cause of problems for many Windows computers, and often cause the Osetup.dll errors. To ensure this will not cause your PC any issues, it's recommended you use a "registry cleaner" program to fix any of the errors that Windows may have inside the registry - which should fix the problems your system has.
