In a previous post, I described how I was able to solve my Windows Explorer problem. I didn’t go into great detail on how I managed to find the solution, so I thought I would expand on that and describe steps you can take.
First, let me say that not having Windows Explorer running is not the end of the world. Your computer can still function, as Windows Explorer is just the Graphic User Interface (GUI). Of course, you would like to get it back (preferably without reinstalling Windows), so I’m hoping this post can help. Keep in mind that some of the steps described below can be very advanced, but may be needed to troubleshoot the problem.
List of Needed Software
Before we begin, we will need the following tools installed:
As we research the problem, there may be more tools to install, however, this is a good start.
Installing the Software
The first step to determining the problem is to download and install the tools. If you are not on the machine with the Windows Explorer problem, please switch to that machine, turn it on and log in.
Perform the following steps:
Note: As an alternative to the above steps you could type WINDOWS KEY+R. From this point on, when you need to run an application, use this method.
Once the software has completed, continue on to the next section.
Checking for Viruses and Spyware
Most likely the cause of your Windows Explorer problem is a virus or spyware. The first thing that we will do is to check the machine for both.
The above tools may not have found any viruses or spyware, but there still may be some existing on your computer. When my Windows explorer failed to load, I ran both the anti-virus and anti-spyware applications and neither reported any problems. I had to dig deeper to find the cause of my problem. In the next section, we will dig deeper and see what Windows Explorer is doing.
Examining the Windows Explorer Process
This section requires you to execute the Filemon utility. This is a more advanced utility, but I’ll try to make it as easy as possible to understand. Follow these steps to look at the files accessed by Windows Explorer:
For example, when I had problems with Windows Explorer, Filemon indicated that Windows Explorer failed when writing to C:WindowsSystem32yycdd.tmp2. I performed a search on the file, but couldn’t find any information. Next I searched for yycdd and came back with some links. You may have to perform the same search technique for your files: first the whole name and then part of the name.
Summary
The above steps are the ones that I followed when I solved my Windows Explorer problem. They are more advanced than simply executing programs, but sometimes computer problems can be complex. There are other tools available that may help, such as HijackThis, so you can try running those as well to see if they pick up anything. As always, you can contact me for more information.



on January 8, 2009 at 12:30 pm
I achieved at least a temporary fix (a few minutes ago) by deleting a bad registry key:
HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\WINDOWS NT\Current Version\Image File Execution Options\explorer.exe
Hope you find this useful.
on January 8, 2009 at 1:55 pm
Thanks for the information about the registry key. I looked it up, and it looks like it can be quite useful and dangerous at the same time.
If I encounter an explorer issue in the future, I’ll have a look at that registry key.