I‘ve just got a Toshiba Satellite Pro C50A which came with Windows 10 pre installed.

I‘m installing Linux onto this laptop for a friend who‘s technophobic, schizophrenic, and on medication. One of the main uses, if not the main use will be to watch downloaded videos and/or streaming videos.

Unfortunately, when I first got this laptop, there were problems with the DVD drive and it seemed that Windows 10 was making life difficult as well. The DVD drive wouldn‘t boot up from any Linux Live DVDs, although it displaed their contents on the Windows desktop. Eventually, it started ejecting all DVDs, saying “Please insert a disc“. I bought a DVD cleaner disc and cleaned it, but this made no difference. I tried to clean it again, but it just ejected the disc!

I‘ve since been given a replacement DVD RW drive by the seller.

Before I fitted the replacement DVD drive I felt I had to stop Windows from starting up by pressing the Power button. I wasn‘t sure exactly what was happened with the Linux Live DVDs I was trying to boot from. This may have caused problems later.

After fitting the new DVD drive, things improved. The DVD names and contents were displayed on the Windows desktop. However, however when I tried to boot up from any DVD it always stopped at some stage. The error messages displayed were “The disk contains an unclean file system (0,0). Metadata kept in Windows cache, refused to mount“ that the Windows NTFS file system was in a unsafe state because Windows hadn‘t closed down properly. It demanded that I restart Windows, login, then close down, not us sleep mode or hibernation. I hadn‘t done either of those things anyway! It also recommmends me running chkdsk /r . I‘ve done this, let it run for over 90 minutes, until it said it was fixed, but it made no difference! Since then, it‘s even asked to do it again, and was scheduled to take 4-5 hours, so then I just stopped it! This Windows installation has just one user account called “User“ which logs in automatically as it starts up. I don‘t know if there‘s a password. After starting up and closing down Windows I keep getting the same error message! Not only that, but there‘s another error message that won‘t go away. This says “USB read error -22“. According to another message, this is caused by unplugging a USB device without first selecting an option to safely remove it. I haven‘t even done this and don‘t know how this message can keep coming up after so many reboots, especially before booting into Windows!

Try using this to create a bootable USB drive.

https://www.balena.io/etcher/

When you decide to install your chosen OS, you will be given a choice of dual boot (Windows & chosen system) or overwrite Windows altogether.

Hope that helps.

I've had two computers in my home (I bought two second hand Dell computers) which weren't able to install some OS from a DVD (it didn't matter if the OS was Linux or Windows) but yes from a CD. However, they're able to install from an USB (a live USB) too. So I think you should try installing from a live-USB.
There is a lot of information in Internet about how to create a Linux live-USB, also from Windows, from an image, probably the same you have used to create a DVD.
I think that the problem you refer isn't about Windows and sleep mode and so on, because the arrangement (and installation) from a DVD would be a BIOS's matter.

I eventually managed to install from a USB stick, although it was impossible to install from DVDs even if they were brand new and burnt from images just downloaded onto that computer. I eventually used "Linux Live USB Creator" https://www.linuxliveusb.com/ after Unetbootin failed to make a bootable USB stick. Even so, KDE Neon only boots after a long list of ACPI errors.

The same images that failed from DVD worked from USB. The errors were all something to do with the ACPI settings, but when I looked into this and tried to change some of the power settings, I couldn't find out what I should change!

I have installed KDE Neon, as well as Elementary OS. I even had to run fsck the first time rebooting into KDE Neon after booting into Elementary OS. Unfortunately, KDE Neon has ended up bottom of the GRUB list, while Elementary OS is top of the list and Windows 10 is in second place. I now plan to make posts about the ACPI error, as well as how to rearrange the order the three OSs appear in the GRUB menu.