The user32.dll is a core components of the Windows Operation System. It is a dynamic link which is used for executing the Windows user application programming interface. It has the ability to give a plenty of power and flexibility on Windows programs. Normally, the Windows user32.dll is necessary for Operation System. The file of it stores something which related to graphic elements, such as the instruction of dialogue boxes and windows. Without this file , the Windows Operating Systerm will not run regularly any more.
So you see that how important to repair the user32.dll error it is! 
Generally, the user32.dll file is located on system directory:C:\\Windows System32. Except the Windows 95/98/Me, it is located on directory:C:\\Windows System. When the file is missing , damaged or even be infected by virus, there will be an error message come out on your PC. But how to repair user32.dll error effectively? There are three ways for you as following.
1.Install the latest Windows update. Click on the Start menu, and then go to run utility, type those command wupdmgr in the open dialog box , click enter button. In the other way, you can also use the Windows update download function which is Selfcontained by computer system, and install the necessary updates on your PC. 
2.Check out whether the file of user32.dll is missing or damaged. If the answer is yes, you should take action to copy the file from the other normal computers with the same version of Operation System, and remove it to the right place. Then click startup menu, select Run option, input "regsvr32 user32.dll", and click enter key.
3. The best way to repair use32.dll error by minutes and protect you PC is to install an advanced registry repair software. This repair software can not only provide you optimize function, peak performance of your computer,but also help you fix a various of the user32.dll errors automatically. Such as, invalid uninstall entries, sound sections. Resgistry in Windows is used to speed up PC and help you get away from kinds of system errors. So it is a primary link for consideration.
Compare to these repair ways, the most effective way is the third one. As a good registry can not only help you impromote your computer syetem with a good performance, but also optimize your PC completely and regularly. A registry repair software can be your best choice to fix user32.dll error. Don't hesitate any more, just take a look and you will find out what you want.
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