Can i use my old hdd with new build.

[Mohd_33]

In my old hdd Windows 7 64 bit is installed and Intel drivers are installed...and my new build is of and processor..so my question is can I use it in my new pc.

 

[Rdslw]

depending what changed, usual set is that when mobo change then windows works best if reinstalled. you can insert it and use windows resotre pendrive/dvd

 

[asoroka]

You should back up your personal data, reformat and re-install.

If that is not an option then you can try.
If it boots great, just install all of your motherboard and device drivers.

If it does not, then try booting into safe mode and installing motherboard drivers

 

[doolittle]

If you have a new build, chances are windows 7 will not work at all (or at least get patches / updates if it actually does work) since the newer processors are only approved for windows 10 updates.

My advice, recover your win7 key then try to activate the same version of win 10 (e.g. home or pro) on a fresh install, I think that is still working these days.

 

[USAFRet]

In my old hdd Windows 7 64 bit is installed and Intel drivers are installed...and my new build is of and processor..so my question is can I use it in my new pc.

The physical drive, sure.
The Win 7 OS on it, almost certainly not.

And even in the unlikely event it did actually boot up, then you run into licensing issues.