The error is “windows security enter network password”, no matter what password you enter you will not be able to connect to your Windows XP machine from your Windows 7 PC.
The way that I fixed the problem was to open the local security settings by going to the run box and typing “secpol.msc” then going to local policies, security options, then network security: LAN Manager authentication level, you will select the second one on the drop-down menu with NTLMv2, Send LM & NTLM – use NTLMv2 session security if negotiated. This is what fixed the problem for me.
A gang of Internet hackers got caught after a 4 year run. It goes to show your that you computer can never really and truely be safe. Its a shame that Windows users for the most part have to continously amp up their security but they must keep in mind that most of these viruses are written to execute on the Windows operating system and mainly on Internet Explorer because it is the most popular platform. Attacking Windows computers gives thieve more bang for their buck. The best thing that you can do is to keep your security software up to date and turn it up to one of the highest levels.
To remove a program stuck in Windows all you have to do is to manually remove the program folders and the registry entries. You must be very careful because you can mess up your computer if you make a mistake. Go to the program folders and look for the program group of the program you want to get remove from windows then select it and delete it. Next go to start and run and type regedit to get to the registry and do the same thing go to the program groups and delete the entries to the program that you want uninstalled from windows. Check out the following link for more detailed info; http://www.pcfix411.com/consultation/42-tutorial/77-how-to-get-rid-of-programs-stuck-on-windows-