I have a laptop where even the BIOS is locked by the administrator and requires password to make changes. But I can select the device to boot from at the boot time.
I have cloned a Windows 7 Operating System to an External USB Hard Disk which is different from the Windows in the target laptop.
Now, If I use this External Hard Disk as a boot device with the target laptop and run the OS in Ext Hard Disk, will it do any harm to the OS that is currently inside the Internal Hard Disk?
Will I be able to run the Internal Hard Disk OS afterwards? Or is there any danger of becoming it unusable?