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?
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.
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
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.
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The question is will this encrypt other partition that have other OS such as Linux automatically especially for dual boot users?
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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?
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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
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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.
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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
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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
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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.
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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
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