Running the Windows Live OneCare safety scan utility damages the ESRI registry files

Description

Running the Windows Live OneCare safety scan utility damages the ESRI hive in the registry file. The specific Keys/Values are being removed by this utility are still under investigation; however, it has been determined that it causes problems when running tools that write to GRID directly or intermediately. Some of the tools that are affected include the Spatial Analyst tool, 3D Analyst tools, and any core raster tools that output to a GRID.

This issue also occurs in 9.3.1.

Cause

This is caused by running the Windows Live OneCare safety scanner, which is available on the Windows Live OneCare Web site.

The safety scanner removes items from the registry file that ArcGIS requires.

Solution or Workaround

Windows XP

1. Open Add/Remove Programs from the Control Panel.
2. Select ArcGIS desktop. Click on the Change/Remove button.
3. After the ArcGIS setup window opens, select the Repair option. Click Next.

Windows Vista

1. Open Program and Features from the Control Panel.
2. Select ArcGIS Desktop and click on Uninstall/Change.
3. After the ArcGIS setup window opens, select the Repair option. Click Next.

Note:
The ArcGIS install disk is needed to perform both tasks.