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  2. Windows USER - Wikipedia

    en.wikipedia.org/wiki/Windows_USER

    In 32-bit versions of Windows, the 32-bit version of Windows USER is called user32.dll and is located in the System32 directory, while compatibility with 16-bit applications is provided by having a modified version of user.exe also present. In 64-bit versions of Windows, the 64-bit implementation of Windows USER is called user32.dll and is ...

  3. 64-bit computing - Wikipedia

    en.wikipedia.org/wiki/64-bit_computing

    However, most 32-bit applications will work well. 64-bit users are forced to install a virtual machine of a 16- or 32-bit operating system to run 16-bit applications or use one of the alternatives for NTVDM. [40] Mac OS X 10.4 "Tiger" and Mac OS X 10.5 "Leopard" had only a 32-bit kernel, but they can run 64-bit user-mode code on 64-bit processors.

  4. Booting process of Windows - Wikipedia

    en.wikipedia.org/wiki/Booting_process_of_Windows

    The 32-bit VxD message server (MSGSRV32) starts MPREXE.EXE, which is responsible for loading the network logon client (such as Client for Microsoft Networks, Microsoft Family Logon or Windows Logon). When a user is logging on to Windows, the startup sound is played, the shell (usually EXPLORER.EXE) is loaded from the [boot] section of the ...

  5. Environment variable - Wikipedia

    en.wikipedia.org/wiki/Environment_variable

    The %ProgramFiles% itself depends on whether the process requesting the environment variable is itself 32-bit or 64-bit (this is caused by Windows-on-Windows 64-bit redirection). %OneDrive% The %OneDrive% variable is a special system-wide environment variable found on Windows NT and its derivatives. Its value is the path of where (if installed ...

  6. Windows 7 editions - Wikipedia

    en.wikipedia.org/wiki/Windows_7_editions

    It supports up to 16 GB of RAM and was available in both 32-bit and 64-bit versions. [14] Windows 7 Professional This edition is targeted towards enthusiasts, small-business users, and schools. [1] It includes all the features of Windows 7 Home Premium, and adds the ability to participate in a Windows Server domain. [1]

  7. Virtual address space - Wikipedia

    en.wikipedia.org/wiki/Virtual_address_space

    In computing, a virtual address space (VAS) or address space is the set of ranges of virtual addresses that an operating system makes available to a process. [1] The range of virtual addresses usually starts at a low address and can extend to the highest address allowed by the computer's instruction set architecture and supported by the operating system's pointer size implementation, which can ...

  8. Process Explorer - Wikipedia

    en.wikipedia.org/wiki/Process_Explorer

    Process Explorer is a freeware task manager and system monitor for Microsoft Windows created by SysInternals, which has been acquired by Microsoft and re-branded as Windows Sysinternals. It provides the functionality of Windows Task Manager along with a rich set of features for collecting information about processes running on the user's system ...

  9. x86 - Wikipedia

    en.wikipedia.org/wiki/X86

    Microsoft Windows, for example, designates its 32-bit versions as "x86" and 64-bit versions as "x64", while installation files of 64-bit Windows versions are required to be placed into a directory called "AMD64". [20] In 2023, Intel proposed a major change to the architecture referred to as X86S (formerly known as X86-S). The S in X86S stood ...