April 8 this year, Microsoft will stop support for Windows XP systems. The system then, this still has a wide user base will be in the "naked state. Microsoft wants XP shut down, users have to use Windows 8 system, but this upgrade can not be achieved. Now, security vendors targeting this opportunity. 

XP shut down countdown 

Windows XP released in 2001, is the most influential operating system. For 12 years, although Microsoft has launched Vista, Windows 7 and Windows 8 operating system, but the system is still the most popular XP operating system. 

Latest data from the U.S. market research firm Net Applications show, Windows XP operating system share of the global desktop operating system market is still nearly 30%. According to some of the industry's statistics, XP system in the country's market share is still very high. In some departments and large state-owned enterprises, XP system applications lowest proportion of over 60%, the highest even close to 95%. 

By constantly upgrading the operating system is Microsoft's business model has always been, apparently Microsoft is not willing to see a lot of business users, "nostalgia XP system. To this end, Microsoft announced that it will discontinue support for XP systems on April 8 this year, and called for corporate users to migrate to the latest operating system. Currently, Microsoft stopped support for XP from the time the system has been less than 100 days. 

In order to allow business users to upgrade the operating system, Microsoft continually "education and" remind business users, XP system after Microsoft stopped support will face a lot of security risks. Microsoft also released a security report had specifically warned the probability of enterprise users infected with malware using the XP system will be greatly increased. 

However, for many enterprise users, upgrade the operating system is not a simple matter. In addition to companies need to pay high cost, and because many government agencies and enterprise information system applications is carried out, application migration, developed under XP system environment is also a time-consuming thing. Insiders said that the party and government organs, enterprises and institutions of the information system by the XP system in a short time is difficult to complete the migration to Win7 / 8 system, a conservative estimate that will last for 1-5 years. 

As a global program, Microsoft again for Chinese users to extend support for XP systems has been minimal possibility. Even Microsoft will provide future support XP service is also expected to charge exorbitant fees, business users will not necessarily be accepted. Then, during the transition period, business users how to ensure information security has become a thorny new problems.

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"Out of Memory" prompts restrictions often make us recall the memory of 640KB DOS era, but it is not entirely proprietary DOS, Windows Vista systems users to play some new games will encounter this prompt. Investigated hardware reason is because the application range of 2G addressing limitations on the Windows platform, the other Vista system memory for graphics processing methods are also virtual omissions.

 

Microsoft recently released an issue for this hotfix patch, although still in the testing phase, but according to media test indeed been solved "Out of Memory" errors. Because this patch is still in testing phase, and therefore it does not appear in Windows Update, and whether it will be included in the Vita SP1 also currently unknown.

 

Windows Display Driver Model (WDDM) is one of the Windows Vista system brings new features, WDDM can achieve some special effects via the desktop graphics support, such as glass effect. Another big advantage WDDM on Vista system brings virtual memory management support, because WDDM intervention, other applications may not need to worry about the adequacy of graphics memory, the ability to save enough for needed programs and games, or other textures some information.

 

However, and the program under Windows as virtual memory management program subject to the same constraints 2GB addressing, and memory when the application of conflict management procedures, it is possible to run 2GB addressing space. Microsoft released a patch tries to mitigate the impact of this problem, particularly when an application needs memory, through the establishment of a virtual memory space to resolve the conflict mentioned above. Microsoft put this process is called "lockable", then patched, only lockable procedures in order to establish a virtual memory space.

 

AnandTech test site showed this patch does significantly reduce the impact of memory on the game via a 768MB GeForce 8800 GTX measured prove that the memory footprint of each game in about 400MB. However, even after the patched game average memory usage under Vista than XP system with hardware systems in case more 180MB. You can make most of the game through patches in the following 2GB safety line, but there are still games such as "Supreme Commander" reached 1580MB memory footprint, we do not know whether the next generation of games will exceed this limit again, causing the problem reoccurs , Well, unless that time people are using the 64-bit operating systems.

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