Fixes key loopholes for potential injection of malicious code.
Microsoft's recently launched operating system, Windows 8, is due to receive its first critical security update next week.
Scheduled for a release on Tuesday, Windows 8 and Windows RT users will be protected from hackers potentially running malware on unprotected PCs.
The patches are being released to prevent "remote code execution," which effectively means holes in the OS that could let a cracker remotely run malicious code on a PC will be closed off.
In addition to Windows 8, the fixes applies to other major Windows versions, including XP, Vista, Windows 7, in addition to Server 2003, 2008 and 2012.
The incoming update delivers a total of six security patches -- four are considered critical, one important, while the other is dubbed moderate. The majority of fixes are focused towards the Windows operating system, accompanied by a fix of a flaw in Internet Explorer 9 and another hole found in Microsoft Office 2003, 2007, as well as the 2010 version for the PC, Office 2008 and 2011 for the Mac.
Windows 8 owners, as well as users of previous versions of the OS can activate the patches manually by clicking on the shortcut for Windows Update via the Start menu. Those who have enabled automatic updates will have the patches installed without any required actions come Tuesday.