Hello, pls somebody help me that why i cannot boot my os which i installed in the hard disk from another computer. it says disk failure.when i try to install a fresh one the message says 'setup did not find any hard disk drives"
Is the hard disk in the boot list? You can't install the OS on another computer unless they are similar.
Check in the bios to make sure it sees the hard drive. Then you might be able to get it to boot from there.