April 19th, 2012 
Driver Detective 
downloaded driver detective and one of the downloads threw messed up my yahoo messenger. It is important that this program function. can u help me with this problem. I have taken it out and put it back in and it still does not work. what can i do
Chosen Answer:
All I can suggest is to make sure that you have done a complete uninstall which is more than just using add/remove programs. Read below.
—————————-
COMPLETE UNINSTALL OF YAHOO MESSENGER
Please note that doing a clean uninstall of Yahoo Messenger will erase your message archives so read here about how to copy them http://help.yahoo.com/l/us/yahoo/messenger/messenger8/messenger/mstacopyarchive.html
First uninstall Yahoo! Messenger through add/remove programs.
If you want to do a total clean uninstall of Yahoo Messenger then also navigate to Program Files on your hard drive and delete the Messenger folder inside of the Yahoo Folder. Follow this path (XP): My Computer>>C: drive>>Program Files>>Yahoo>>Messenger. Reboot your computer (important!).
If you have a trusted registry scanner use it now. If you do not have a trusted registry scanner that you are familiar with than skip this step because you can mess things up if you do not know what you are doing. I personally use CCleaner but then I have been using it for years and know how to use the Registry scanner portion safely. Using any of these types of programs is USE AT YOUR OWN RISK. Make sure you know how to create a system restore point and backup any of the Registry files it changes.
It is important that now you reboot your computer. Now download and install Yahoo messenger again using the following link: Full Installer for Yahoo Messenger 9.0.0.2162
http://download.yimg.com/ycs/msg/dl/msgr9/us/ymsgr900_2162_us.exe
by: ♱♫True Colors☺♥
on: 5th September 09
Posted in 
Tags: 
All I can suggest is to make sure that you have done a complete uninstall which is more than just using add/remove programs. Read below.
—————————-
COMPLETE UNINSTALL OF YAHOO MESSENGER
Please note that doing a clean uninstall of Yahoo Messenger will erase your message archives so read here about how to copy them http://help.yahoo.com/l/us/yahoo/messenger/messenger8/messenger/mstacopyarchive.html
First uninstall Yahoo! Messenger through add/remove programs.
If you want to do a total clean uninstall of Yahoo Messenger then also navigate to Program Files on your hard drive and delete the Messenger folder inside of the Yahoo Folder. Follow this path (XP): My Computer>>C: drive>>Program Files>>Yahoo>>Messenger. Reboot your computer (important!).
If you have a trusted registry scanner use it now. If you do not have a trusted registry scanner that you are familiar with than skip this step because you can mess things up if you do not know what you are doing. I personally use CCleaner but then I have been using it for years and know how to use the Registry scanner portion safely. Using any of these types of programs is USE AT YOUR OWN RISK. Make sure you know how to create a system restore point and backup any of the Registry files it changes.
It is important that now you reboot your computer. Now download and install Yahoo messenger again using the following link: Full Installer for Yahoo Messenger 9.0.0.2162
http://download.yimg.com/ycs/msg/dl/msgr9/us/ymsgr900_2162_us.exe
Hi!
sometimes could happen that new drivers create conflict with existing programs, try to uninstall Yahoo with a uninstallaer program like Revo uninstaller (that delete all files) and install it again.
Before make any change is better to make a complete drivers backup, follow the guide on that site to known how.