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Windows 10 upgrading tips
Windows 10 upgrading tips
I don't think anyone really tested upgrading. I finally got windows 7 to upgrade.
Windows 10 has to have an available partition for the system reserve for upgrading at least 450 MB or a current system reserve partition already installed.
It seems that windows 10 requires the previous operating system to be installed on first partition, still testing that method out, which may cause problem with some OEM partitions.
Don't upgrade from a usb stick, that could also be an issue with windows 10 as well. I made another partition, copied the windows 10 install files from there, then did the upgrade from that folder. Windows created a system reserve partition. If you already have a system reserve, I think windows 10 will use that instead but increase the size to 450 mb if you can.