Of course there are a few ways of doing this; I’d normally only run a dual boot configuration on a test machine so wouldn’t be too perturbed by having to rebuild and start over, but this machine already had a lot of data and customisation and I didn’t want to start again and rebuild from the OS up.  So how else do you set about removing Linux and GRUB?  Well, the answer is actually quite simple.

Caveat:  I cannot stress the importance of ensuring you have a full backup of all the data on the machine before proceeding.  If you don’t have one, stop now.

Before going any further, you’ll need to dig out your original Windows 7 installation media as you’ll need this in the following steps, then once you are ready do the following:

• Restart your machine and enter the BIOS
• Somewhere in the BIOS menu you’ll find a setting to change the boot order of your machine, enter this and ensure that you have the DVD drive set at the top of the boot order
• Enter your Windows 7 DVD into the drive and restart
• Press any key on your keyboard when prompted to enter setup
• Select the appropriate language, time, currency and keyboard layout and click Next
• Click Repair your computer
• Click the option highlighting the operating system that you want to repair, in my case Windows 7 and then click Next
• On the following screen, System Recovery Options, click Command Prompt
• Once the command prompt opens on your screen type the following followed by Enter:
  Bootrec.exe /FixMbr
• You should now see ‘operation completed successfully’
• Restart your machine and enter the BIOS once again to change the boot order back to its original setting
• Now, restart your machine and you should notice that GRUB has been replaced with the stock windows boot loader and Windows starts to load without prompt
• Once back in the GUI, right click My Computer followed by Manage and Disk Management
• Right click the Linux partitions and remove them (simplified, you will have to click a few buttons here to acknowledge the steps)
• Right click the Windows partition and extend it into the space created by removing the Linux partitions (again simplified, just acknowledge the prompts as they appear)
• Job done

You should now find that GRUB and Linux are no more and you have a dedicated Windows machine once again, the whole process should take no more than around 5 minutes; far preferable to the hours it would have taken to rebuild the machine from scratch.

Note: the same method also applies for other distributions of Linux

• Open a terminal window and type:
  sudo su
  followed by your password when prompted and then:
  gedit /etc/X11/xorg.conf
• Once gedit opens scroll down to the ‘Device’ section and just before ‘EndSection’ add the following:
  Option “AddARGBVisuals” “True”
Option “AddARGBGLXVisuals” “True”
• Save the file
• Restart Ubuntu

You should now find that all of the titlebars return and life is good again.  The above method should work for all recent releases, I’m using 10.04 Lucid.

Fortunately, there is a simple way to overcome this; all you need to do is follow the following steps:

• Start your virtual box and log into Linux Mint in the normal way
• Hit the right ctrl key so that you can get you mouse pointer outside of the virtual box as you’ll now need to work with the host machine
• Go to the top of the virtual window, click on Devices and then select Install Guest Additions.  You’ll now see the virtual CDROM installed within Linux Mint and a new icon will appear on the desktop
• Click back inside the virtual box again and go to Menu and then Terminal
• Type cd /media/cdrom0 and then hit enter
• Type sudo sh ./VBoxLinuxAdditions-x86.run and then hit enter.
• You now need to reboot your virtual machine
• Log back into Linux Mint and go to Menu, Control Centre then Display.  You should now have more options than the original low resolution options you had.

Depending on your specific hardware, you may still find that you’d like a different combination or higher resolution than the new ones which are listed; again, there is a solution:

• Open Terminal again by going to Menu and then Terminal
• Type sudo gedit /etc/X11/xorg.conf and then hit enter.  You will be asked for your password, type this and hit enter again
• The text editor will now load, before changing anything make a backup by going to the file menu and choose save as, changing the file name to xorgbak.conf
• Now to make the changes.  Unlike previous versions you will not see a long list of configuration options, 9.10 creates these settings dynamically.  However you can still add specific combinations so add your desired settings here (Caveat: Working with xorg.conf is a topic in itself so do not add code here unless you are sure what you are doing, you WILL break the installation and either have to fix it from the command line or reinstall the virtual machine), this will vary depending on your hardware and the resolution you are trying to achieve, I added the following lines of code for my hardware:
  Section “screen”
Identifier “screen0”
Device “Videocard0”
DefaultDepth 24
Subsection “Display”
Viewport 0 0
Depth 24
Modes “1920x1200” “1680x1050” “1280x1024” “1024x768”
EndSubSection
EndSection
• You must now do a save as but ensure you change the filename back to the original xorg.conf otherwise you will overwrite the backup you have just created.
• Restart the virtual box and you should now have the new screen resolutions available.

Enjoy.

To play a DVD on Linux Mint, you will need to install libdvdcss2.  In Linux Mint 8 just as with previous versions and Ubuntu, there is no need to manually configure the repository, all you need do is the following:

• Open a Terminal Window (Menu > Terminal) and type the following:
  sudo apt-get install libdvdread4
• Next type the following:
  sudo /usr/share/doc/libdvdread4/install-css.sh

Once you have done that, next time you insert a DVD you should get the option to auto run with MPlayer Media Player.  Enjoy.

*Note:  The above proceedure is also the same to enable DVD playback in Ubuntu 9.10, although Terminal can be found in by clicking Menu > Applications > Accessories > Terminal*