Error Code 8007371B

When I try to install a service pack update that Windows tells me is needed,
the update repeatedly does not install. Instead I get a message that the
install failed due to error code 8007371B. I've searched for that error code
to find a way around it and I get nothing. I need help with this.
Thanks

 

Windows version? Which Service Pack?

 

Hello Tim,

Code
0x8007371B

Error
ERROR_SXS_TRANSACTION_CLOSURE_INCOMPLETE

Description
One or more required members of the transaction are not present.

Try :
Description of the System Update Readiness Tool for Windows Vista
<http://support.microsoft.com/kb/947821>

These error might be caused by a system irregularity that the System Update
Readiness Tool might be able to resolve. However, the tool might be unable to
fix all instances in which these errors occur.

Hope this helps, if not wait for more responses, please.
-=-

 

Which updates (listed by KB######)?
What Operating System?
What Service Pack level is your Operating System?
What architecture is your Operating System (32-bit or 64-bit?)
What antivirus software do you utilize?
What firewall software do you utilize?
What antispyware software do you utilize?
What is your backup plan like (backups of your important data to external
media)?
What have you tried in order to resolve your issue so far?