一、错误描述：
Web Part Error: One of the properties of the Web Part has an incorrect format. Windows SharePoint Services cannot deserialize the Web Part. Check the format of the properties and try again.
二、错误原因：
1、权限配置问题
2、C盘空间不足
三、解决方案：
1、To resolve this issue, make sure that the following permissions are configured correctly:
Windows directory
%WinDir%\Temp
Administrators - Full Control
SYSTEM - Full Control
STS_WPG - Read, Write
Network Service (for a domain controller only) - Read, Write
%WinDir%\system32\logfiles
STS Administrators - Full Control
SYSTEM - Full Control
STS_WPG - Read, Write
Network Service (for a domain controller only) - Read, Write
2、This is due to less disk space on the server where sharepoint is hosted. So before changing or modifying the access configurations do check the disk space first.