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You can determine if your processor is 64 bit capable by using a free tool called CPU-Z. You can download it here. Once you have it installed, double click it and it will scan your system.
If you see them, then your processor is 64 bit capable. If you are running a 32 bit version of Windows, whether Windows 8 or Windows 7, you need to consider carefully the steps to migrate from it to 64 bit Windows 8. Regardless of the ubiquity of 64 bit computing, key factors such as hardware and application compatibility remain a issue, especially for legacy systems. Does your system meet all the requirements? Having just a 64 bit capable processor is not the main go ahead for 64 bit Windows.
What about other hardware such as your video card, audio device, printer and any other critical device or application you are using? The first thing to do is to create an inventory of both your hardware and software programs.
After doing that, go to the manufacturers website and check if there are any 64 bit drivers available. The manufacturer might not have native 64 bit Windows 8 drivers, but they just might have 64 bit Windows 7 and Vista drivers which should work. The reason why is Windows 8, Windows 7 and Vista all share the same driver model. Application compatibility remains critical, for instance, if you are running applications designed for Windows XP or apps that are not fully 32 bit, you might want to reconsider your decision.
Applications that are 32 bit but might contain 16 bit code will not work with 64 bit Windows. So, you need to carefully think this true. Once you have gathered all the necessary prerequisites such as driver updates and have certified all your applications are compatible, you need to backup your personal data. There is no upgrade path from 32 bit versions of Windows to Windows 8 64 bit.
Yes, that means you will have to reinstall all your drivers 64 bit native drivers and applications. Some additional configuration might be required on your part. The best way to handle some of the migration chores is by using the built in Windows Easy Transfer utility specifically for Windows 7 users. If you are running Windows Vista or Windows XP, make sure you download the free Windows Easy Transfer utility , install it and create a backup of your personal files and settings.
Because of WoW64 Windows on Windows bit. Bascially it is a 32 bit emulator, which allows you to run 32 bit programs in a 64 bit operating system. X86 is the mode for 32 bit applications, named after the 80x86 series CPUs. A 32 bit application can address 4 GB of memory. X64 is the mode for 64 bit applications, it's a shortening of the name x which is the 64 bit mode of the x86 instruction set. A 64 bit application can address 18 PB petabyte of memory, which translates to all available memory for the forseeable future.
The compilation mode is just an instruction for the JIT compiler for how it is allowed to compile the IL code into machine code.
The IL code itself is the same for all modes. Q2: The target CPU flag that you set is an indication that the compiled result of the build is targeted to run on the selected CPU architecture. In this case the AnyCPU means that the application can run in the preferred or bit mode of the operating system. A system that supports bit mode often makes this the preferred mode to run the application.
The reason you want to be able to select the mode manually is if you use any Component that is already compiled for a specific architecture the application must use the same architecture as the Component, Components in this case might be COM- or ActiveX Controls. How are we doing? Please help us improve Stack Overflow. Take our short survey. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Differences between windows 8.
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