I bought a computer recently and installed windows xp sp3 black version, but later it was changed to windows xp sp3 by Microsoft perhaps. Every time I log on my computer, I am asked to choose the operating system-"Microsoft Windows xp professional." I press enter and it logs on but it opens slow and shut down is also slow. I downloaded and installed PC mighty max but it's not working. Upon opening the program, it shows on desktop-The application failed to initialize properly(0xc0000135).Click on OK to terminate the application. I would like help.

As Microsoft NEVER made a Black Edition of XP you are using a pirated version and as such AMHD will NOT assist with your issues.