
Generally speaking, making a bootable CD/DVD/Blu-ray Disc is necessary if your system has been compromised, or has experienced technical difficulties.WinISO has ability to make bootable CD/DVD/Blu-ray Disc image file. With WinISO, you can process the boot information for CD/DVD/Blu-ray Disc image file, as well as directly add/remove/extract boot image for the CD/DVD/Blu-ray Disc image file.
Not all CDs or ISO files have boot information. Running WinISO then you will find out whether your CDs or ISO image files have bootable information or not on the left of WinISO.
WinISO has many options for"bootable CD": these functions include"Set image from file","extract boot image","Clear Boot Information"and"Import form CD/DVD/BD Drive or CD/DVD/BD Image File".
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Load boot information from file : You can use WinISO to load boot information in two ways.
Usage 1:
Click"bootable"on the toolbar; the drop-down list will popup. Click the “Set Boot Image”, a “select a boot image file” dialogue will appear on your screen. Afterwards, choose the boot image file. Then click “open”, now you have the bootable image file.

Usage 2: You can also load boot information from CD/DVD/BD Drive or CD/DVD/BD image file
Click"bootable"on the toolbar; the drop-down list will popup. Click the “Import From..”, There will be two options. If you have the CD/DVD/BD image files on your file, just choose the “CD/DVD/BD Image File”, a “select a boot image file” dialogue will appear on your screen. Choose the boot image file. Then click “open”, now you have the bootable image file.

Extract boot image: Click “Bootable” on the toolbar, the drop-down list will popup. Click the “Extract Boot Image”, A"Save"dialogue box will appear on your screen. Enter the file name what you like, after that click"Save"then you should get boot information. You can load this boot information to other non-booted files to get a bootable image file.

Clear boot information: If you do not need boot information for your file, please click “Bootable” on the toolbar; the drop-down list will popup. Click the “Clear Boot Information” then you will get a Non-boot image file.

Afterwards, you can burn it to CDs.
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