Default maximum file upload size in SharePoint 2010 is 50MB. How do I increase the file size to 100MB in SharePoint 2010?
Here is the step by step instruction to change maximum upload file size in SharePoint 2010
1. Go to Central Administration and click on Manage Web Application
2. Click on your SharePoint 2010 Web Application which you want to increase the maximum upload file size
3. Now click on General Settings change maximum upload file size in SharePoint 2010
4. Go where it says Maximum Upload Size and change the 50 MB to 100 MB and click ok. This will enable you to upload documents up to 100MB size to SharePoint 2010 document library.