The method is as follows:

1. Pay attention to the wrong path, such as figure: E: OFFICE2007Proplus.wosetup.dll (the path here is actually the folder corresponding to the corresponding folder you install the package file, the same below)

2. Find this directory: E: Office2007proplus.ww;

3. There is a proplus.ww.cab file in it, about 260m;

4. Open this CAB file or computer with compression tools such as winrar. Extract the osetup.dll file inside;

5. Use the extracted file to cover E: Office2007proplus.WW directory.

The above is the processing method of Win8.1 installation of Office prompt Osetup.dll error. As long as you extract the error file and overwrite it, can you solve this problem, is it easy?