Problems installing SQL Server 2008 SP2
Solution 1:
If you have to download the file again, and run this command: "SQLServer2008SP2-KB2285068-x86-ENU.exe /x:c:\SQLServer2008Install" (minus the quotes). This will extract it to the c:\SQLServer2008Install folder, or pick the folder of your choice. You can then point to that extracted location for any future use.
Just as a note: Many Microsoft programs can be extracted with the /x switch. Just run the executable with /? at the end and see what the switches are supported. This file is an exception in that the /? does not show the /x switch as an option, but I downloaded the 64-bit version of that file, and it did extract as I showed above to the location specified.