MS Baseline Security Analyzer is warning me about "more than two" administrator accounts. While I recognize 2 of them the third is listed as "S-1-5-21-809299238-162025716-2501954535-1003" however going to Management Tools etc. this "administrator" does not show, i.e. I can't control it by removing it. What is this thing??? Any help would be appreciated. Thank you.11/11/09 9:10 MSTFollow Up: An AVG scan revealed the following warning:"C:\RECYCLER\S-1-5-21-809299238-162025716-2501954535-1005\Dc79.exe";"The file is signed with a broken digital signature, issued by: Microsoft Corporation.";""This is one of several AVG warnings about broken digital signatures, including the item below, which is actually XP's SP3 installation file which would not complete installation due to an "access denied" message late in theprocess. (My first attempt to install SP3 failed in May 09, since that time I seem to have been unable to complete any System Restore.)"C:\WindowsXP-KB936929-SP3-x86-ENU.exe";"The file is signed with a broken digital signature, issued by: Microsoft Corporation.";""Questions: What does that "Dc79.exe" do?What significance has a ...broken digital signature... issued by Microsoft? Does that prevent the installation of SP3?FYI - the remaining seven warnings involve HP scanner &picture related programs, not before flagged by AVG:"C:\col3927\hpsw\instmsiw.exe";"The file is signed with a broken digital signature, issued by: Microsoft Corporation.";"""C:\col3927\hpsw\instmsia.exe";"The file is signed with a broken digital signature, issued by: Microsoft Corporation.";"""C:\col3927 (HP Scanner Update Jul 08)\hpsw\instmsiw.exe";"The file is signed with a broken digital signature, issued by: Microsoft Corporation.";"""C:\col3927 (HP Scanner Update Jul 08)\hpsw\instmsia.exe";"The file is signed with a broken digital signature, issued by: Microsoft Corporation.";"""D:\HP Scanner\col3927.exe:\hpsw\instmsiw.exe";"The file is signed with a broken digital signature, issued by: Microsoft Corporation.";"""D:\\HP Scanner\col3927.exe:\hpsw\instmsia.exe";"The file is signed with a broken digital signature, issued by: Microsoft Corporation.";"""D:\HP Scanner\col3927.exe";"The file is signed with a broken digital signature, issued by: Microsoft Corporation.";""Can anyone help with this? Thank you.xpgeezer5 people need an answerI do too