[Maxxim]

O.Kela, Good to know that the previous version of the OS switching tool works in Windows 10. I didn’t want a possible inconvenience of getting stuck in a pre-boot environment so I followed the advice to install a newer version of the tool.

Stratis, The above means that the task of upgrading to Windows 10 has now become even easier. 🙂 Simply upgrade to Windows 10 when prompted by the Windows Update application after having installed all the necessary updates for Windows 8.1. (Please note that you may have to look for updates several times before you get the upgrade prompt.)

[Maxxim]

Just do an in-place upgrade from Windows 8.1 to Windows 10, it works fine, I’ve tried it.

1. Make a full backup (always a good thing to do) using a Macrium Reflect bootable flashdrive
2. Start Windows, perform all the necessary first steps
3. Check for updates several times, install all the updates
4. When prompted, upgrade to Windows 10
5. Uninstall the old OS switching app
6. Download and install the Windows 10 version of the OS switching app

And that’s it!

[Maxxim]

Don’t worry, everything will be done automatically. You only need to follow the simple 6-step procedure I outlined above.
Yes, believe it or not, things CAN be easy and straightforward with Windows. 🙂

(edited three days later)
Bah, resizing Android’s /data partition to allocate more space to Windows turned out to be trivial. 🙂 The only stumbling block was a Microsoft Reserved Partition that was in the way and couldn’t be moved by any partition management software except for Aomei Partition Assistant (the makers of which probably just disregarded Microsoft’s guidelines). In fact, moving the MSR was just a minor convenience — one can get away with deleting it and then recreating it with diskpart, or reserving space for the MSR in a new location and restoring the partition from a Macrium Reflect backup.

[Maxxim]

juan wrote:

you say that windows 10 wil erase and merge the partition number 18 ? the one that haas 6Gb (almost) and is the recovery partition for windows 8.1 ???

Exactly! 🙂

Still, I would love to resize Android’s /data partition in favor of Windows. I wonder if anybody has any info on the proper way to do that. (I have a suspicion that one does not simply resize an Android partition. :))

[Maxxim]

If you need more disk space for Windows while keeping Android, you’ll have to resize Android’s /data partition (it’s the largest of Android partitions, weighing in at 11GB on my 64GB Vi10 Pro). Problem is, nobody ever confirmed it’s safe to do so — I, for one, would be really interested to know —  and I did search quite a bit. All the instructions I found concerned getting rid of either Windows or Android.

If you intend to keep the Android partitions as they were, then no further manipulations with Windows partitions are necessary — the Windows 10 installer will do its job wonderfully. Your recovery partition will be a mere 450 MB, and the rest of Windows disk space will be in a single large partition.

[Maxxim]

It doesn’t have to be that complicated. 🙂 Just do an in-place upgrade from Windows 8.1 to Windows 10, it works fine, I’ve just tried it.

1. Make a full backup (always a good thing to do) using a Macrium Reflect bootable flashdrive
2. Start Windows, perform all the necessary first steps
3. Check for updates several times, install all the updates
4. When prompted, upgrade to Windows 10
5. Uninstall the old OS switching app
6. Download and install the Windows 10 version of the OS switching app

And that’s it! You won’t need to bother with partitioning and performing a clean install, worry about getting the right drivers, or double-check the activation status of Windows. It Just Works. (Never thought I’d say that about Windows, but it does! :))

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