My computer keeps shutting down. Can i get some help?

[CreativeHacks]

So i recently have taken apart a newer computer and was going to install my old harddrive from my other computer into the newer computer. When i opened the newer computer i noticed it didnt have any RAM in the computer. I took the old ram from the older computer aswell as the hard drive and put them both in the computer. When i turn the new computer on it turns on gets to the part where it says starting windows, then just shuts off. Can i get some help?

 

[lancear15]

sorry but your post is so lacking in details I don't even know where to begin.

 

[jimpz]

If you moved the hard drive with the OS into another system, odds are it is not going to work, the wrong drivers are in the OS. If you moved over memory, there is also a good chance it may not work correctly in the other system. But Lancear15 is correct more details & specs & we can give you a more accurate answer.

 

[Daniel da Cunha]

Try reinstall the os and install the drivers.
You can't just take the hdd from one pc and put in another one, you must format the harddrive and install all again