The so-called “kill switch” is designed by microsoft prevent users with illegal copies of Vista from using certain features.

But the tool is said to have bugs as many Windows users claim that legal copies of Windows Vista have been disabled.

Microsoft says its efforts have seen a drop in piracy of its software.But the bugs are quite tedious to handle as owners of original copies of Vista have to face illogical music.

In a statement released by the company, Microsoft corporate vice president Mike Sievert, said: “Users whose systems are identified as counterfeit will be presented with clear and recurring notices about the status of their system and how to get genuine copies.”
Even though microsoft would give genuine copies to such users,What about the mental hammering which they faced because of their operating system shown to be illegal?

An online tool, called Windows Genuine Advantage, checks the authenticity of the OS to determine if it was legally acquired.

The tool can “lock” Vista from further use if it believes it is an unauthorised copy. But many users have complained that the system is not working because legally bought copies result in error messages.

It was introduced in 2006 as a voluntary option, but became mandatory with the release of Vista, and had problems from the day it was introduced. Mr Sievert added: “It’s worth re-emphasising that our fundamental strategy has not changed.

“All copies of Windows Vista still require activation and the system will continue to validate from time to time to verify that systems are activated properly.”

Microsoft said it had pursued legal action against more than 1,000 dealers of counterfeit Microsoft products in the last year and taken down more than 50,000 “illegal and improper” online software auctions.