According to the download site http://www.microsoft.com/download/en/details.aspx?id=184

to apply SP4 you would download and run SQLEXPR.EXE or SQLEXPR32.EXE depending on your OS.

Microsoft SQL Server Management Studio Express Service Pack 4...

I'd suggest trying to start the SQL Server & SQL Server Agent services from services.msc instead of using the failover cluster manager and see if that allows the hotfix to...

Should have added the following if you have SQL Server 2008 R1 -

http://www.microsoft.com/download/en/details.aspx?id=12548

What's New:

•Reporting Services in SharePoint Integrated Mode. SQL Server 2008 SP2 provides updates for...

Known issue, try rerun setup again and you should be ok.

Yes it can and here is the link for you http://msdn.microsoft.com/en-us/library/bb326345.aspx

You may be able to use the sc command.

You appear to be hitting a path limit or restriction as mentioned in this article

Review and test if you can shorten the path and also review the path for...