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It's not a completely bad thing but ehh there are serious disadvantages, especially for gamers. I'm just glad I use Linux and will keep the change in mind in case I need to reinstall Windows on my gaming rig.
Btw TL;DR of the article is:
Windows 11 will automatically enable BitLocker on clean installs and re-installs.
OEMs will be able to enable it even on Windows 11 Home with a special UEFI flag (whatever that means).
BitLocker is a full-disk encryption technology by Microsoft. It provides better security since the data on the drive cannot be read without decrypting it (especially useful if someone steals the device) but the data cannot be recovered in case of forgetting the password or system malfunctions. Also it greatly decreases performance of the drive (by up to 45% on SSDs). This makes it unsuitable for many computer users.
The feature cannot be disabled by native means. If you want to disable it, use Rufus and select the appropriate flag when creating the bootable USB.
The question is will this encrypt other partition that have other OS such as Linux automatically especially for dual boot users?
Knowing Microsoft's behavior for many years, it might. If I had a dual-boot, I'd make sure I have a backup of all the important data on a separate device
Bitlocker is a feature that relies on NTFS
Unless you've somehow been working with cthulhu and installed Linux on an NTFS partition, you're probably golden
I mean for instance. I dual-boot Linux and W11 atm. For some reason my Windows 11 needs to be formatted back because of the virus or etc or SSD replacement with fresh installation of Windows11 and of course bitlocker will be activated automatically after WIndows have been reinstalled it back from the scratch. Will this affect my other ext4 or Btrfs OS partition? or do I need to back up of my Linux important files on that partition before W11 mess up my Linux?
https://www.tomshardware.com/news/windows-software-bitlocker-slows-performance
That number was only for random write performance. And if you have an SSD that supports TCG Opal and eDrive standard (IEEE-1667) for hardware based bitlocker encrytion then there is no negative speed impact.
Yeah it would only be that slow if you don't have a CPU with AES-NI instructions (which were introduced nearly a decade and a half ago)
No desktop OS does, (Excepting the odd Linux distro I'm sure is out there), not even macOS does.
iOS/Android yes
True, the system partition is, but not where actual user data is. That won't be encrypted unless the user enables FileVault, granted it does ask during initial setup if you sign in to iCloud if you do want to enable it, but it's default is off
Read the source. I just shortened it
Excuse me, what!?!
I wonder where the average is for the performance reduction. Probably something I'll look into but I'd be pissed if I bought a drive and instantly lost even 20%.
Luckily, I'm not on Windows so I have nothing to really worry about but damn.
Since most people sign into Windows with their Microsoft account, does that mean that MS holds the decryption keys for your local hard drive?
If you configure it to backup your keys to your account, yes.
This (at least used to be) an opt in configuration option
Idk. I just made a TL;DR. I'm not a Windows expert by any means. There's no point for me in studying it cuz I only use it for gaming and don't even consider it as my main OS