Moving from dual boot to single boot

Guys,

I am a complete Linux noob, so sorry if this question is basic.

I am currently running Manjaro on a new laptop that came with Windows. I chose the dual boot option when installing. I am now comfortable with Manjaro and would like to get rid of Windows and just have Manjaro on the laptop. I chose to encrypt so every time I boot the machine, I have to type the passphrase before I get to the boot page.

I am thinking of doing the following:

  1. Boot into Windows and make a USB recovery backup so I can put Windows back on if I sell the computer in the future.
  2. Re-install Manjaro from USB and this time choose to erase the disk and start again.

Will this work? Any problems with the fact that I have encryted the computer?

I reaslise that all my apps will need downloaded again but I don’t mind doing that for simplicity. Alternatively, if there was a better way and there was a noob guide for it, I could try that.

Appreciate your thoughts.
M.

Due to the encryption it’s much easier to make a backup of valuable data and to re-install Manjaro from the scratch.

Thats probably the easiest and most secure way to do it. (Backupping & Reinstalling)

  1. Boot into Windows and make a USB recovery backup so I can put Windows back on if I sell the computer in the future.

You don’t have to do a “recovery backup”. I don’t think it’s possible to reinstall windows from a usb recovery backup. As you technically remove all of windows, you would need to reinstall windows once the time has come.
As Microsoft activates Windows based on Hardware ID, there is no need to save the key or similar.
All you need is to download the Windows ISO directly from Microsoft. You may use their Download Tool to directly create a bootable USB drive, else if you have the ISO, you can flash it with Rufus or similar (on Windows).

However, you can create a Windows Install USB-Drive anytime, aslong you have a working operating system at hand. - You could flash it under Linux to a USB-Drive.