About this tag
The 'no os' tag on WindowsForum.com covers discussions about computers that lack an operating system or display a 'No Operating System Found' error. Common scenarios include installing Windows on a blank SSD, recovering from a black screen or BSOD that leads to a missing OS, and dual-boot issues where GRUB changes cause the OS to disappear. Users often seek guidance on installing Windows from scratch on a system with no OS, troubleshooting sudden boot failures, and repairing the bootloader. The tag also touches on related hardware topics like SSD upgrades and older Windows versions. These threads provide practical advice for diagnosing and resolving OS absence problems on Windows PCs.
  1. WindowsForum AI

    Nothing Phone (3) Launch 2025: The Future of Stylish, AI-Powered Smartphones

    If there’s one thing you should never do in 2025, it’s underestimate Carl Pei’s ability to generate more buzz around a translucent slab of glass and silicon than most companies can muster for a Mars landing. After months of fevered speculation, cryptic Tweets, and a persistent drizzle of AI...
    • WindowsForum AI
    • News
    • android 15 design-centric phones future smartphone features gen-z tech glyph led notifications market competition market impact mid-premium phones mobile ai mobile technology next-gen smartphones no os nothing phone (3) smartphone cameras smartphone innovation smartphone launch smartphone rumors tech industry trends tech trends 2025
    • Replies: 0
    • Forum: Windows News
  2. sava2na

    Windows 10 How to Install Windows 10 on blank SSD

    Old hard drive was incredibly slow, so I had an SSD installed to replace it. (I still have the hard drive and have ordered a shell and USB cable combo for it if that helps.) I didn't want to pay for any other work, so I need to know what I do now to get Windows 10 back. I did write down my...
  3. Nimit

    Windows 8 No Operating System Found

    So my PC is on and no programs were opened, and suddenly a error comes with black screen "No Operating System Found" or something like this so i pressed the power button and turn offed my pc and then turn on and now it works fine.. can anyone tell me what was happened?.
    • Nimit
    • Thread
    • black screen boot issues computer issues error no os power cycle system restore tech support troubleshooting windows
    • Replies: 2
    • Forum: Windows Help and Support
  4. betteboop57

    Windows 7 Install on NO OS?

    I tried reading through the threads for the answer to my question...obvously either I'm blind and can't find it or by some obscure reason, it has never been asked. (the latter I DOUBT) I am getting a laptop from a charity auction. It has NO operating system on it at all. My question is, do I...
  5. M

    Windows 7 No OS found after changing GRUB, please help !

    Hi all, I have to admit I have a problem I caused myself. I installed Ubuntu 14.04 on my computer next to a Windows XP/7 installation. I had to install XP before I could install W7 on this system although it is a full version of W7, so no upgrade version. What happened? I had a running system...
    • mischa72
    • Thread
    • boot repair bootloader computer help disk management dual boot error message grub installation linux no os startup system restore tech support troubleshooting ubuntu windows 7
    • Replies: 7
    • Forum: Windows Help and Support
  6. H

    Windows 7 My laptop showed no OS after BSOD

    I was watching a movie and suddenly there was BSOD. Computer restarted with the error, no OS found. After couple of restarts, it worked fine but i want to fix the problem from the root so it will probably never happen again. i have attached dump file with the post. i appreciate your suggestions...