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Windows 10 upgrade from Windows 7 dual boot with Ubuntu

Windows7 + Ubuntu 双系统下,如何升级到 Windows 10

I have a desktop computer purchased in 2014. It was a dual system of Windows 7 + Ubuntu 14.04 and I had been considering upgrading Windows 7 to Windows 10 for a long time, but there were potential problems with the process that made me hesitate to do so. I finally took the plunge and upgraded it recently, and I'll...