Google Chrome Fail to install with error 0x8004071c

Solution:

1. Go to the Start menu > Run.
2. Enter the following in the text box: regedit
3. Click OK.
4. Find and right-click the relevant registry key for your operating system:
   • Windows XP: AuditInProgress in HKLM\System\Setup
   • Windows Vista: ImageState in HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Setup\State
   • Windows 7: ImageState in HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Setup\State
5. Select Modify.
6. Delete the value.
7. Click OK.

Information from:
http://www.google.com/support/chrome/bin/answer.py?hl=en&answer=142060