News Analysis: Microsoft's Windows 7 is experiencing a well-publicized security problem that reportedly affects a release candidate. The software giant contends that the security bug doesn't affect the production version of Windows 7 that the company is releasing to PC manufacturers, consumers and retail store shelves. It's time for Microsoft to focus on building customer confidence that the shipping version will truly be more secure than earlier Windows editions.
In what could be a major issue for Microsoft as it prepares for the release of Windows 7 next month, the company announced that it has found a bug that could hijack PCs running Windows Vista, Windows Server 2008 and Windows 7.
Security researchers found that the issue affects the Windows 7 Release Candidate. However, the company was quick to assert that it has found that the bug won't harm Windows 7 RTM—the version on its way to store shelves.

"An attacker who successfully exploited this vulnerability could take complete control of an affected system," a Microsoft advisory said. "Most attempts to exploit this vulnerability will cause an affected system to stop responding and restart."

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Windows 7 Security Bug Emerges at Worst Time for Microsoft