These two days, my Windows XP has a blame. Each time you turn off the folder window, the 'memory write error' prompts, the event manager display: Event ID: 1002 Source: Winlogon shell is unexpected, Explorer.exe is restarted to check the virus Trojan, there is no. Check the recently installed software, uninstall one by one, or solve the problem. Although there is no practical harm of this problem, it is very annoying. I have checked it online for a long time, although there are similar phenomena discussions, but most must not college. Finally, I read a post in phil.treesrustle.com/index.php to inspire, the result, the problem is solved. Check the registry: HKEY_LOCAL_MACHINE / SOFTWARE / Microsoft / Windows / CurrentVersion / Explorer / Browser Helper Objects] There are four items below, two of which seem to be related to Norton, ignore him. There is another {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3}, delete it (back to the registry before deleting, remember to remember), try again, and problem solving. Restart the system, the annoying CRASH has never appeared. I couldn't be resolved as soon as possible, but there were a lot of tools and other documents that were previously installed, and I would like to reinstall the configuration, it is not relaxed. Besides, I want to figure out the key to the problem, and the precise maintenance is more interesting. If other netizens encounter this problem, the above experience may help help it.