First, open the installed Virtualbox4.3.12 as follows:
Step 2: click "new" to enter the "new virtual computer" Page, enter the name, and select the type and version (three XP 64bit I use here ):
Step 3: select the memory size. I will select 512 MB here;
Step 4: create a virtual hard disk, select create virtual hard disk now, And next select the virtual hard disk file type, select the default option to go to the next step
Step 5: select the new virtual hard disk file as a fixed size (fast in use ):
Step 6: select the file location and size. The default size is 10 Gb. Click "CREATE" and wait until the progress bar is loaded to complete the creation:
Step 7: The page after creation, for example:
Step 8: Set, select storage> no disk --> select a virtual disc, add your image file, click OK, return to the main interface, and click the start button, enter the familiar system installation interface.