Lost operating system - Windows 7/10

  AntonRahbek 09:20 26 Mar 2017

Product Name: Compaq Presario CQ5207SC Operating System: Microsoft Windows 7 (64-bit)

I need help to install an operating system on my old desktop. It didn't run Windows 10 very good so I tried to degrade it back to Windows 7. Apparently it failed, and had also somehow deleted the Windows 10 operating system. So now I'm left with no installation disc (I lost it), and no operating system. Where can I get the OS, and how? Also, how can I boot the installation from CD or flash-drive? Tell me if you need serial number, product key etc. Thanks in advance -Anton

  alanrwood 10:11 26 Mar 2017

If you have a genuine product key you can download this MS Tool which allows you to download an iso of any version of Windows.


Download the correct iso and burn it to a DVD disk or USB stick. You can use a disk burning program such a CDBurnerXP to do this as the iso needs to be decompressed as it is burned. (You probably need to get a friend to do this for you if you if you don't have a second working computer yourself)

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