In the Windows operating system, you may find many errors time to time. Some are easy to resolve and some are difficult to get rid of. Olepro32.dll is missing error in windows is also such type of error. It is caused due to the missing or corrupt Olepro32.dll file. After getting olepro32.dll was not found error in Windows, you will see that the computer starts behaving unusually. You will not be able to access the system or its applications. Therefore, to get rid of this situation, you should go through the manual or automatic methods of error fixing. If you are not technically skilled to use manual methods then you must download and install Advanced System Repair tool to fix the issue automatically.