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Modify boot order

Method 1: from the Terminal

• sudo gedit /etc/default/grub
• edit order and save the file
• sudo update-grub

Method 2: Install Grub Customizer

• sudo add-apt-repository ppa:danielrichter2007/grub-customizer
• sudo apt-get update
• sudo apt-get install grub-customizer
• after the install edit the order

Disable Internet Explorer home page changing

Method 1:

• run regedit
• open key HKEY_CURRENT_USER\Software\Policies\Microsoft\Internet Explorer\Control Panel
• set HomePage to 0:Enabled or 1: Disabled

Method 2:

• run gpedit.msc
• go to User Configuration\Administrative Templates\Windows Components\Internet Explorer
• Double-click on Disable changing home page settings
• select Enabled

CD/DVD drive letter missing

Method 1:
(Tested on Windows 8)

• rum cmd as administrator
• type reg.exe add "HKLM\System\CurrentControlSet\Services\atapi\Controller0" /f /v EnumDevice1 /t REG_DWORD /d 0x00000001
• reboot

get image dimensions in JavaScript

var img = new Image();
img.src = "pathToFile";
width = img.width;
height = img.height;

Change body background color/image using JavaScript

   document.body.style.backgroundColor = '#000';
   document.body.style.backgroundImage = 'PathToImage';