MS Update Successful and re-appears on next check for Updates

Computer: 1.3GHz processor, 512 RAM and 81% freespace. Running Win XP SP2
Home Edition. Problem is with Microsoft Updates. Two of them continue to show
up as needed even though the "Review your update history" shows that the
updates succeeded by a green check mark. The two in question are: "Update for
WMDRM-enabled Media Players (KB891122)" and "Windows Media Player 10". Things
that I have tried are:
1. "Set Cryptographic Services to automatic"
2. "Rename the Catroot2 folder" This one allowed me to access the Microsoft
Update Site and do the Updates.
3. "Reregister DLL files that are associated with Cryptographic Services"
softpub.dll, wintrust.dll, initpki.dll, dssenh.dll, rsaenh.dll, gpkcsp.dll,
sccbase.dll, slbcsp.dll, mssip32.dll and cryptdlg.dll
Can somone offer me any other solutions that may resolve this problem?
Thanks....