
That said, it is possible to install Windows 98 in a Virtual Box virtual machine. Probably because of the 16-bit to 32-bit compatibility methods that Windows 98 had, along with no real OS security to speak of. It seems that the current versions of Virtual Box do not include virtualization for Windows 98 at all.

This must be done before Windows starts, so it's best to press the key a few times directly after you start your PC.The exact key or key combination depends on your computer manufacturer and model.Common keys to enter the BIOS are F1, F2, F10, DEL, and ESC.3. Press the right keyboard key to enter the BIOS setup. Make sure that “Intel Virtualization Technology” and “VT-d” are enabledEnter BIOS settings and check if “Intel Virtualization Technology” and “VT-d” are enabled.The following steps may be slightly different on your computer.2. Disable “Memory integrity” in Windows 10I experienced the same problem while trying to install a 64-bit version of Linux Mint inside VirtualBox.I opened VirtualBox, clicked on NEW, entered a name for the virtual machine, choose the type of operating system, but when I wanted to choose a version, I only saw 32-bit versions and NO 64-bit versions as an option.Fortunately, I found a simple solution online and on this page, I will share that solution with you.Note! Your host operating system (OS installed on your PC) must be 64-bit.I was using a 64-bit version of Microsoft Windows 10 Pro while creating this tutorial. Check if Windows 10 (host) is a 64-bit operating system Make sure that “Intel Virtualization Technology” and “VT-d” are enabled
Enter optionalfeatures.exe in the Run window.5. Right-click on the Windows start menu button.3. Hyper-V must be disabledHyper-V is Microsoft's hardware virtualization product.It lets you create and run virtual machines (like VirtualBox).Many third-party virtualization applications (including VirtualBox) do not work together with Hyper-V.That's why you must make sure that Hyper-V is disabled.To check if Hyper-V is disabled, follow the following steps:1. Windows 10 (host) must be a 64-bit operating systemTo check if your Windows 10 is a 64-bit operating system, press the + keyboard keys.At System type (located under System), you should see something like 64-bit Operating System, x64-based processor. If you made changes, then you must save the settings.
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Click on Repair located at the bottom right.VirtualBox will now start the repairing process. When the Windows User Account Control window appears, you click Yes.Note: You might need to enter an administrator password in the User Account Control window and then click Yes.5. Right-click on the installer file (the one you used to install VirtualBox) and choose Run as administrator.If you don't have the installer file anymore, then you will need to download it from the VirtualBox website ( The installer file must be the same version as the version of VirtualBox that's installed on your computer.2. Solution 1: Repair VirtualBox installation1. After the command is finished, you will need to power down and reboot your PC. If the Hyper-V option unchecked (like in the screenshot above), then you can close the Windows Features window.If the option is checked, then you will need to uncheck it and then click on OK.If you want to be 100% sure that Hyper-v is disabled then follow these steps:5.
Make sure that Memory integrity is turned off.If Memory integrity was enabled and you just disabled it, then you may need to restart your PC.Hopefully, this simple solution will solve your problem. Under Core isolation, you click on Core isolation details.4. Solution 2: Disable “Memory integrity” in Windows 103. After the repair process is finished, you click on Finish.VirtualBox may ask you to restart your PC.Hopefully, this simple solution will solve your problem.
