Error in mshtml.dll for IE8 and Yahoo Messenger

Few days back in my computer yahoo messenger started to crash. I'm using the latest version that is of cause version 10 for yahoo messenger. I have reinstalled the program, but it didn't fix the problem. So, I have check the event viewer on the computer for more details about this problem. This is what I found on the log.

Unable to open drives by double clicking

Most of the time this is caused by a virus or malware. This type of viruses and malwares mostly spreading through a flash drive which you are taking everywhere. The problem is when you have removed the virus or malware using a virus remover or malware remover still you can't open drives by double clicking on them. This happens because the changes that happen to registry values not been set to normal by the virus or malware removing software. So we need to manually correct them.