Is your Lenovo laptop, PC, or tablet stuck in an endless loop showing the message “The computer restarted unexpectedly or encountered an unexpected error. Windows installation cannot proceed.”? This problem usually happens during a Windows reset, clean installation, or system upgrade and prevents Windows from completing the setup process.br br When this error appears, clicking OK only restarts the device and brings the same message back again. The issue affects Windows 11, Windows 10, Windows 8, and Windows 7, and is widely reported on Lenovo devices.br br Common error message:br br “The computer restarted unexpectedly or encountered an unexpected error. Windows installation cannot proceed. To install Windows, click OK to restart the computer, and then restart the installation.”br br This Windows setup error is common on many Lenovo models, including ThinkPad X1 Carbon, ThinkPad T14, ThinkPad E15, IdeaPad 3, IdeaPad 5, Yoga 7i, Yoga 9i, Legion 5, Legion 7, Flex 5, Flex 3, Lenovo V14, YB1-X91F, and Chromebook Duet.br br In this step-by-step tutorial, you’ll see how to fix, repair, and bypass the Windows installation loop on Lenovo systems. These solutions work even if your hard drive was completely formatted, Windows was reinstalled from USB, or the system gets stuck on a black screen during setup.br br What this video covers:br br ✔ Fix Lenovo Windows installation restart loopbr ✔ Repair “Windows installation cannot proceed” errorbr ✔ Complete Windows setup after reset or reinstallbr ✔ Fix Windows setup stuck restarting Lenovobr ✔ Solutions for Windows 11 10 8 7br br Don’t let this Windows installation problem stop you from using your Lenovo device. Follow this guide to exit the reboot loop and successfully finish installing Windows in just a few minutes.