Win10更新卡住时，便携式Ubuntu及Live CD能否用于文件备份？

Hey there, sorry to hear about your friends' frustrating experiences with Windows 10 updates—losing files is never fun. Let's tackle your two questions directly:

1. Can a portable Ubuntu run normally if Windows 10 is stuck during an update? #

Absolutely. Here's why:

• Portable Ubuntu (whether it's a Live USB or CD) runs entirely from the external media, it doesn't rely on your local Windows 10 system at all. The Windows update freeze is a software-level issue with your installed OS, but your computer's hardware (CPU, RAM, storage, etc.) is still functional.
• As long as your BIOS/UEFI can detect the portable Ubuntu media and you set it as the first boot option, you'll be able to boot into the Ubuntu Live environment without any issues, regardless of how broken or stuck your Windows 10 installation is.

2. Can I use an Ubuntu Live CD to boot my computer and back up files before reinstalling Windows? #

Yes, this is actually one of the most common and reliable ways to rescue files from a broken Windows system. Here's a straightforward breakdown of how to do it:

• Insert your Ubuntu Live CD into your computer's optical drive, then restart the machine.
• When your computer starts up, press the appropriate key (usually F2, F10, Del, or Esc—depends on your motherboard brand) to enter the BIOS/UEFI settings, and set the CD drive as the primary boot device.
• Save the settings and exit; your computer will now boot from the Ubuntu Live CD. Select the option that says "Try Ubuntu without installing" (this lets you use Ubuntu without making any permanent changes to your local drive).
• Once you're in the Ubuntu desktop, open the default file manager. You'll see your Windows 10 disk partitions listed on the left sidebar (they'll be labeled with their drive sizes or Windows volume names).
• Click on the Windows partition to mount it. Most modern Ubuntu versions support reading and writing to NTFS partitions (Windows' default file system) out of the box.
  • Important notes: If your Windows drive uses BitLocker encryption, you'll need your BitLocker recovery key to unlock the partition in Ubuntu. Also, if Windows was left in a hibernated state, you might need to boot into Windows briefly to disable hibernation first (if possible) to avoid file corruption when mounting the partition.
• Connect an external storage device (like a USB drive or external hard drive) to your computer. Once it's detected, you can simply drag-and-drop your important files from the Windows partition to the external storage to complete the backup.
• After your backup is done, you can safely proceed to reinstall Windows 10 without worrying about losing your data.

内容的提问来源于stack exchange，提问作者user2127168