An enthusiast ran Windows 7 on a 5 MHz processor and Windows XP on a 1 MHz CPU the OS loaded in 28 minutes and 3 hours respectively



    Today, a new x86 processor is under 1 GHzmost desktop processors have base clocks much better than two GHz, with the smaller x86 processors more than three GHz. In the 1980s, however, the processors were limited to only a few MHz; the IBM PC was just 4,77 MHz.

    Can you run a modern Windows OS with such a frequency? When NTDEV developed a popular YouTuber, he found out that he could use Windows 7 in 2009, a processor called Pentium, which was reduced to 995 MHz to 5 MHz, so it exceeded the minimum system requirements. The test system had also 128 MB of RAM installed, and it was very short of the minimum requirement of 1 GB for Windows 7.

    In a YouTube video, NTDEV shows a virtual machine running in an 86-Box emulator. The demo shows how Windows 7 has gone from running the WCPUID program to working with the 6.0 MHz program and even running Notepad. As soon as you countdown the DVD, the time would have been when Windows 7 started to appear!



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    When you boot, you can choose between normal and safe modes. NTDEV turns normal, but it really boots into safe. Once completed, the process shows all.sys,.dll and.exe files as they are loaded. The enthusiast told Toms Hardware that he modified the boot configuration, so that even choosing normal mode causes it to boot in safe mode.

    When Windows seven is powered by a tyre on the tyre, NTDEV disabled the most drivers and only three people are running on the system. I had to bypass the authorization system, too.

    The LogonUI isn’t required to load under 50 MHz. For the command message, I took a path forward and put the OS into a pseudo-OOBE state, transforming the registry and deleting everything from the c:windowssystem32 folder so that it wouldn’t boot.

    OOBE is the power that works when you install the Windows Installer. There is no first menu or Windows Explorer, but the command button can be created by pressing Shift + F10.

    The NTDEV desktop shown in this video is not easy to use. The menu, wallpaper, and windows are simple to clean. As per the WCPUID/Time Checker program, you had to enter the command line to it. A notepad was also launched.

    At the moment in the video, NTDEV used four different programs: Command Prompt, WCPUID, Winver (images the Windows 7 version), and Typed Notepad, resulting in a very limited but fairly stable environment.

    The enthusiast said that he ran Windows 7, the clock clock speed was only 3 MHz, but its capabilities didn’t suffice to create an interesting video. Even in Windows 7, only 36 MB of RAM, but opted for 128 MB, so the test system didn’t need an exchange file. In reality, the system used only about 70 MB during the demonstration.

    The virtual machine does not have enough storage space to allow for 16 GB. There are more than one GB of data space, and the OS.wim disk image is more than 350 MB.

    NTDEV is a startup and searching for ways to allow Windows 10 or Windows 11 to run with a 1.6GHz processor. He has already managed to run Windows XP at just 1 MHz. It took 3 hours to boot up!

    An enthusiast created a simple emulator that runs Windows 95 on nearly any platform.



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