Does free upgrade to 10 from 8.1 offer Custom: Install Windows only.


  1. Posts : 51
    Windows 10
       #1

    Does free upgrade to 10 from 8.1 offer Custom: Install Windows only.


    I have already once done a free upgrade to W.10 & then decided to go back to W.8.1. I know I now can go back up to W.10 any time I want, even after the July 29, deadline. (I believe!). However, I want to do a dual boot for both 8.1 & 10. Does a normal upgrade contain the box whereby you can select the 2nd choice, 'Custom: Install Windows only' which will enable me to do a dual boot. I didn't notice it when I upgraded it before. Or do I have to use a bootable USB drive to get this feature. Thanks for any replies.
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  2. Posts : 1,366
    Windows 10 Pro x64
       #2

    You'll need two licenses to run both OSes, but the install process is no different than Windows 7 or 8/8/1. You have the same options for partitioning and choosing where to install.
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  3. Posts : 17,360
    Windows 11 Pro
       #3

    You have to have a bootable installation source to clean install Windows 10 to an empty partition after purchasing your second license for Windows to legally dual boot.
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  4. Posts : 51
    Windows 10
    Thread Starter
       #4

    NavyLCDR said:
    You have to have a bootable installation source to clean install Windows 10 to an empty partition after purchasing your second license for Windows to legally dual boot.
    Thanks guys! I have already made a 'bootable installation source' in the form of a USB flash drive to clean install W.10, although I haven't been able to get it to install anything yet. I don't see why I have to purchase anything to dual boot! I already have a licence for 8.1 & I've a bootable media for 10. The reason I made the USB flash drive is because I thought this was the only way to get the 'Custom: Install Windows only' option which allows you to install to a partition. I've already made a partition as 'G:' drive. At the moment I wondering if I have to go into the BIOS to change the order. However, when I tried to enter before by keying: (F2)(Fn)+2 when the manufacturer's name/logo appears, nothing happened. This is an Acer Aspire V5-571P laptop built in Sept. 2012. In 'File Explorer' of the 9 items in the flash drive's folder one is 'setup.exe', when I selected this on my Lenovo Ultrabook it installed W.10, but I don't remember seeing the 'Custom' option!
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  5. Posts : 9
    Windows 10
       #5

    robinpe said:
    I don't see why I have to purchase anything to dual boot!
    There is no need to buy another license.
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  6. Posts : 51
    Windows 10
    Thread Starter
       #6

    hotkey said:
    There is no need to buy another license.
    Thanks for that hotkey, I didn't think so. I have now repositioned the BIOS to USB-HDD & have restarted my laptop, unfortunately it's in the process of updating 118 updates. I haven't used this Acer laptop for about 4 months. I'll update info as it happens.
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  7. Posts : 17,360
    Windows 11 Pro
       #7

    hotkey said:
    There is no need to buy another license.
    Yes, there is. 1 license for Windows = 1 install of Windows. The OP wants to install 2 copies of Windows from a single license which violates the EULA, and it violates the forum rules here to encourage people to violate the EULA.
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  8. Posts : 51
    Windows 10
    Thread Starter
       #8

    robinpe said:
    Thanks guys! I have already made a 'bootable installation source' in the form of a USB flash drive to clean install W.10, although I haven't been able to get it to install anything yet. I don't see why I have to purchase anything to dual boot! I already have a licence for 8.1 & I've a bootable media for 10. The reason I made the USB flash drive is because I thought this was the only way to get the 'Custom: Install Windows only' option which allows you to install to a partition. I've already made a partition as 'G:' drive. At the moment I wondering if I have to go into the BIOS to change the order. However, when I tried to enter before by keying: (F2)(Fn)+2 when the manufacturer's name/logo appears, nothing happened. This is an Acer Aspire V5-571P laptop built in Sept. 2012. In 'File Explorer' of the 9 items in the flash drive's folder one is 'setup.exe', when I selected this on my Lenovo Ultrabook it installed W.10, but I don't remember seeing the 'Custom' option!
    Hi again guys.
    Well, I decided to take a chance & activate W.10 from the 'setup.exe' file & the result was as I suspected, there is no allowance to select the 2 options which would let me create a partition & before I could stop it I had to completely load W.10 again. When it was finished I immediately went back to W.8.1 again. So I've got to figure out why so far I'm unable to boot from the USB I made.
      My Computer


 

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