The simple explanation is; Windows uses Greenwhich time, and OSX uses Universal Time. It's as simple as that. Every time the other OS boots up - it changes around your BIOS settings in-order to 'correct' the CPU clock timer - which is essential for any computer to calculate things correctly. News and how-tos on all the tech in your home. Type cd /d R: EFI Microsoft Boot to change into the Windows boot loader directory. (If this directory doesn't exist, you may need to create it first with mkdir. If rEFInd or some other boot loader occupies this directory, back it up first. Type bootrec /fixboot. Type bcdboot c: Windows /s R: /f ALL. Note that this command should set the. And UEFI fast boot off, as that assumes no system changes & you are changing system. Newer systems need legacy off to boot in UEFI mode. And in Windows you need Windows fast start up off as that sets hibernation flag and then Linux NTFS driver cannot see the NTFS partitions. Note that Windows updates may turn fast start up back on. I need a decent Windows machine. If I like the form factor, and the fact that it keeps its resale value better than any other makes, is a 11.6' MacBook Air a good buy for a decent Windows.

I've found a Dell Precision (spec below) refurbished online.

Dual Boot Osx And Windows 10

Last year I bought an Asus which I'm going to sell on at a loss - it fought against Ubuntu installation, and in my ignorance I hadn't realised how limiting a fairly early i3 processor would be. Other issues too, though it works perfectly on Windows.
Before I get financially burned again, if this Dell machine stays available long enough, would you recommend it as suitable for dual-boot installing alongside its Windows10 with Ubuntu 20.04?
I am no expert, but have installed dual boot with earlier Ubuntu editions on other laptops. The Asus defeated me, my ability is limited to fairly straightforward installations.
With thanks.

Dual Boot Osx And Windows 7