Windows 10 is rolling out to desktops worldwide, but if you are one of those still on the fence and mulling over whether or not you should upgrade, perhaps this review by Preston Gralla could help you arrive at a decision.
On the other hand, if you are sure you want to upgrade, and would like to know what to expect during the upgrade process, or need to know how long it could possibly take, hopefully the upgrade timeline listed below can help fill-in the missing pieces.
The following screenshots and stopwatch readings were taken while upgrading a Windows 8.1 Pro laptop with a i5 CPU running at 1.7 GHz, and 4GB of memory.
Windows 10 is ready to install.
License window, followed by Preparing for the upgrade.
I used a Lumia 1020 running the +Stopwatch+Timer app to record the total elapsed time at various stages of the upgrade process. Every time I took a photo of the upgrade screen, I took another snapshot of the stopwatch app.
The stopwatch timer was started at the same exact moment the Start the upgrade now button was clicked.
The configuration process began, taking around five and a half minutes to reach 25%.
The configuration stage took around 15 minutes total to finish. The machine rebooted and started Upgrading Windows.
One hour has passed since the upgrade button was clicked.
One hour and forty-five minutes to reach 99%.
The machine restarted a final time, then at last, it was running Windows 10.
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