On 2017-05-10 09:45, jdd@dodin.org wrote:
Le 10/05/2017 à 03:31, John Perry a écrit :
already 4 primary partitions on the drive. You were right, Carlos.
from there you have several roads to take.
I understood you installs yourself w10. If so and if your computer is UEFI capable (I don't remember if it is), you can install W10 in UEFI/GPT mode where you don't anymore have this primary partitions problem - but this needs reinstall.
Even if it is not uefi capable GPT can be used, at least with Linux. I have mine that way. But I don't know for sure if Windows support it; I think I heard it doesn't.
if you can't go this way, you should still be able to remove only one primary. AFAIK only three are necessary: main (larger), EFI one (very small, max 500Mb) and may be an other W10 system.
No, EFI is not needed. It is a BIOS mode computer, old, 2012 (?) I think someone said. Windows 7/8 needs just two: Boot and system. Manufacturers add one more for rescue. And some added a fourth in order to block Linux being installed. I guess, evilly. W10 can work with just those two: at least mine, upgraded from W7, uses the same two. But I heard rumours that it install with three.
of course you can reinstall creating an extended partition from the beginning
Only with a real Microsoft install disk, not when you use one from the computer manufacturer. In those cases, what it does is recover from rescue partition, restoring to the same state as when the computer was bought. Typically you don't have the chance to customize anything. -- Cheers / Saludos, Carlos E. R. (from 42.2 x86_64 "Malachite" at Telcontar)