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Next, press Enter or click/tap OK, and the System Configuration tool opens. Simultaneously press the Windows + R keys on your keyboard and, in the Run window, type msconfig. A quick way to launch it is to use the Run window. To do that, start the Windows operating system you intend to keep and open the System Configuration tool. Perform this action from the version of Windows that you want to keep. Windows 10 and Windows 11 in a dual-boot setupįirst, remove the boot entry for the Windows version that you want to uninstall. How do you delete Windows 10, for example? You may want to remove the older Windows 10 and use its space to create a new partition or to resize your existing Windows 11 partition. What if you have two or more Windows operating systems installed on the same computer and want to uninstall one of them? For example, let’s assume that you have installed Windows 10 and Windows 11 in a dual-boot configuration.
#ACCIDENTAL DUPLICATE WINDOWS 10 INSTALL HOW TO#
How to uninstall Windows 11 or Windows 10 when they’re both installed (in a dual-boot configuration) If you want to uninstall Windows 11 or Windows 10 like this and need guidance on how to use diskpart and format, follow the steps described in this tutorial: How to use diskpart, chkdsk, defrag, and other disk-related commands.Ģ.
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#ACCIDENTAL DUPLICATE WINDOWS 10 INSTALL INSTALL#
Remember, this will erase all the data you have on that partition.Īlternatively, you can boot from the recovery or install drive, load Command Prompt (Shift + F10), and then use the diskpart and format commands to remove or format the Windows partition(s) you no longer need. Then, on the recovery screen or during the installation of the new operating system, select the existing Windows 11 or Windows 10 partition and format or delete it. Create a USB recovery drive or an installation CD/DVD or USB memory stick with the operating system that you want to use next, and boot from it.Ĭhoosing to boot from a CD in the BIOS/UEFI Boot Menu If you installed just one Windows operating system, regardless of whether that’s Windows 11 or Windows 10, uninstalling it is simple. How to uninstall Windows 11 or Windows 10 when that’s the only operating system you have One way to back it up is through File History. If you don’t back it up before uninstalling Windows, you risk losing your data if something goes wrong along the way. IMPORTANT: Make sure that you back up the data you have on the Windows drive. How to delete Windows from a dual-boot configuration with Linux
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