1)检查文件 C:\IBM\InformationServer\Version.xml 确定clientTagId的key值
举例:<InstallType client="true" clientTagId="0a045bd2-09cd-4b80-a158-ac1cb63c8268"
2)启动注册表
3)重命名HKEY_CURRENT_USER\Software\IBM\InformationServer\DataStage Client\0a045bd2-09cd-4b80-a158-ac1cb63c8268
为HKEY_CURRENT_USER\Software\IBM\InformationServer\DataStage Client\0a045bd2-09cd-4b80-a158-ac1cb63c8268.bak
4)重启DataStage