The administrator must obey permissions just like any other account. If some folder or registry key is marked read only or not owned by the admin, 0x5 can occur.
I don't want to upset you but the admin account is not God. They can change permissions as needed on almost anything but your question needs us to start with something basic to administration.
A. Why? I see no good reason for that.
B. Maybe. But the classic failure with .NET updates is well discussed and depending on which side you take, it is or is not a Windows update issue. This is why we have to know the KB number to do our research.
C. I missed where you wrote why you suspect that.
There are very well worn reasons for Explorer to lock up. I'm unsure where you are in your courses or books on Windows 2003 so let's just say it's one of those areas I wish Microsoft would do better. Be sure to take the SHDOC.dll message verbatim to google and add in quotes "Windows 2003" to see what others have written up.
This is not a desktop OS so be sure to avoid trying what you try on say Windows XP to 8.
Don't see a forum for Server 2003. So I posted here and hopefully some of the Moderators might take a shot a helping out on this one. If not Please tell me where I can re-post..XP? Thanx. With that said..
I have issues on server 2003 R2, SP2. Normal authentication, No AD. it just happened in the last day or so. Turned the monitor on for the server and it was asking why it had shut down unexpectedly, . I keyed in unknown and proceeded to logon. After Logon, I saw the green "recently updated" icon in the sys tray and thought that was odd, because Windows always tells itself it restarting for updates
I then noticed that the My Computer icon, Network Places icon and recycle icons are displayed with unknown file icons. Here are some other issues observed: When I right click the icons it sees them as folders, giving me only typical folder options. Can't open mmc.exe even from CLI. to see the event viewer to see what happened. I get a class not registered error. The All Programs won't display the programs list when I click on it. On a whim I tried installing malwarebytes, I get "regsvr32 failed with exit code 0x5" Research tells me "Access Denied" issues. I am logged in as admin. Administrator tools link doesn't work either.
I right click the desktop then select add short cut, just to browse the computer another way or create a shortcut... the MS wizard opens, I click browse, and my only option is make new folder or cancel, clicking make new folder does nothing, it doesn't browse. There are so many things that don't work I don't even know where to start with what things that don't work to help in a diagnosis, ugh!
I can install a program, for example Firefox from a flash drive, I select launch and get to the internet just fine. When I close it, I cannot run the program again because it never created a shortcut and I cannot browse the computer in anyway to find the .exe. Windows key+E, Win key +R doesn't work, right click the desktop and properties. I get explorer.exe created Exception_Access_Violation in Module SHDOCVW.dll, and other errors. I can't even browse from the task manager the machine freezes.
The odd part is all our Practice Management Applications are running fine, It only seems to be the OS side of the server.
A)can I run sfc /scan now on sever2003? And Should I run sfc? Will it affect any of our Applications installed?
B) Is it a windows update that may have caused this? If so how can I roll back? roll back to registry from say the 9th of Dec?
C) Raid Degraded?
Don't even know where to start.....and I'm gonna have to explain this in the morning ..any help...Thanx