Windows 10 upgrade path and process

1. 4/6/2015 Windows 10 Upgrade Path and Process
http://windowskeyoffer.blogspot.kr/2015/04/windows­10­upgrade­path­and­process.html 1/4
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In a pre‐session presentation related to March 19, 2015 event on upgrading to Windows 10 from different
operating systems, Microsoft’s Julius Ho has noted down few interesting points. These points form the base
of this post on how to upgrade to Windows 10 from Windows 8, Windows 8.1 and even Windows 7, and the
process involved.
It is clear by now that Windows 10 will be a free upgrade for all – even for some who are using
counterfeit Windows 7, Windows 8.1 and Windows 8 and will be available somewhere this Summer – which
could be anytime from June to September.
Windows 10 is indeed exciting. Microsoft is betting everything on the operating system, which will be same
across all types of devices – from PCs to notebooks to tablets to phone. The features may be more or less
available depending upon the type of device being used. For example, a Windows 512 MB phone might have
less features compared to a phone with 1GB memory.
To make it all legitimate, Microsoft is allowing everyone with Windows 7, Windows 8 and Windows 8.1 –
even if they are using pirated copies – to upgrade to Windows 10, after which, it could well be subscription‐
based, as Microsoft had stated earlier that updates will be pushed to Windows 10 as and when required.
There will, in all probability, be no Windows 11. Windows 10 is Windows as a Service and works just like that
– pushing updates and keeping the operating system up to date to deal with malware and cybercriminals –
not to mention the later availability of user interface changes and other features.
According to the PowerPoint slideshow, Windows 10 combines the best of Windows 7 and Windows 8.1
while improving on the fundamentals such as ease of navigation and security. For the first time in the history
of deploying a higher version of operating system at enterprise levels, Microsoft is urging enterprises to
upgrade the desktops, instead of creating disk images. It says the process will make it easier to upgrade to
Windows 10.
Microsoft defines the word Update in three different contexts:
1. Modifying an existing operating system by changing some files
2. For desktops, it could be KBs ﴾Windows Updates﴿, patches or hotfixes
3. For mobile devices, it could even mean moving from Windows 8 ﴾Apollo﴿ to Windows 8.1 ﴾Blue﴿
Windows 10 Upgrade Path and Process
Windows 10 – Time to get excited
Windows 10: Upgrade vs Update

2. 4/6/2015 Windows 10 Upgrade Path and Process
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After defining updates, Microsoft defines Upgrade as follows:
1. For desktops, upgrade ﴾and not update as defined above﴿ means changing the entire operating system,
reinstalling device drivers and apps
2. For Mobile, Microsoft says the terms “upgrade” and “update” are used interchangeably and that from a
technology perspective, everything on mobile devices is an “update”
The term “upgrade” would mean moving to Windows 10, and the term “update” means making changes to
Windows 10 after it is released and installed on machines.
If you check out the Windows 10 upgrade matrix, you will see how it will be possible to upgrade to Windows
10.
You can see that the direct upgrade path is not supported on Windows 7 RTM, Windows 8 and Windows
Phone 8.0. Windows users can burn an ISO to directly upgrade to Windows 10 if they are already using
Windows 7 RTM, Windows 7 SP1, Windows 8, Windows 8.1 RTM, Windows 8.1.
Similarly, people using Windows Phone 8.1 will be able to get the “upgrade” as an update to Windows
Phone.
Windows RT is not supported.
Looking at the matrix below, the path of using “updates” to move to Windows 10 is limited to Windows
Phone 8.1 and Windows 8.1 S14. All other except RT have to use an ISO file. They can directly upgrade over
existing operating system so that device drivers don’t need to be installed separately again. The other
method is clean install where you remove the older operating system, upgrade to Windows 10, install device
drivers and all the apps that you need and were using before the “UPGRADE”.
Windows 10 Upgrade Path & Matrix

3. 4/6/2015 Windows 10 Upgrade Path and Process
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As shown in the above table, desktops and notebooks can upgrade to Windows 10 using ISO media and in
case of Windows 8.1 S14 ﴾Windows 8.1 Update﴿, using Windows Update.
For mobile phones, though it would be “pushing” the new operating system in a phased manner over a
period of time, it is still called “update”. In other words, Windows 8.1 Phone will be automatically updated to
Windows 10 after the latter releases. Generally speaking, the mobile phones check for software updates at
regular intervals and if they find Windows 10, they will install the operating system after asking you for
permission – just the way they did for upgrading from Windows Phone 8 to Windows Phone 8.1.
Windows 10 will use partition switching according to the pre‐session presentation by Microsoft on how to
upgrade to Windows 10. If enough space is not available, Windows 10 may expand the system partition to
make room for the new OS. Likewise, on mobile phones, the app files and customizable system files may be
transferred to SD card in case of low storage space. We had talked about how Windows 10 will reduce its
footprint to save space using smart compression algorithms. Please take a look at the below image to see
how Microsoft intends to update mobile phones with Windows 10.
Windows 10 Upgrade Process

4. 4/6/2015 Windows 10 Upgrade Path and Process
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While we wait for final arrival of Windows 10 towards end of summer 2015, you can keep an eye on MSDN
Channel 9 [http://channel9.msdn.com/Events/WinHEC/2015/OWD100] to see what happens at the Windows 10
Upgrade Program webcast scheduled to happen soon.
Posted Yesterday by Matti Vuorela
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