Qatar99 :
bjornl :
Just make sure the BIOS is set to select the new SSD as your install disk. And remember despite moving the disks absolutely everything will need to be re-installed.
Hello
Ok so how i do that step ? making BIOS set to select new SSD .. and whats that for ?
Ya i know that.
So i just format the SSD and HDD and install them directly to my new PC ?
NOTICE : My new PC already has new SSD+HDD and i installed windows and everything, i am using it now.
In your PC's bios there is a boot order. This is the order in which devices are used to boot from. It can be useful if you want to have multiple boot drives with operating systems which don't play well with each other. However it can cause problems if (for example) you have two devices (like a SSD and HD or a pair of SSDs, etc). You have device #1 set in bios to be default boot device and then select a different device to install the OS on. The windows installer will then write some boot info to the default drive an then continue on your selected drive. This becomes important when you think you can replace your "backup HD" with another SSD and suddenly your PC won't boot. There are fixes for this, but they are more difficult with WIndows 10 than they used to be with Windows 7.
If in doubt, never install the OS with 2 disks attached. If you are confident (and I guess most on here are), then just check the bios to make sure the correct drive is at the top of the boot order before you install the OS.
It can also raise an interesting problem. You take old system drives from another PC and plug them in and if you guessed wrong and put these in SATA plugs which default to higher in the boot order, the system might try to boot from them. The fix is super simple. Go in to BIOS and move your "new" OS drive back to the top. This scrambling of the boot order can happen because on most motherboards the default boot order is Sata port 1, followed by the rest in numerical order. Any port can be selected to be the boot disk. But for example you have two banks of sata ports, one is ports 1-4 the other 5-8. (my motherboard is like this). You would not know with careful examination which is port 1 vs port 5. And if you later plug something in to a lower port you can have a fun filled 5-10 seconds going back in to the bios. (as I said super simple to fix). For what it is worth, I see this problem most with ASUS boards. MSI, Gigabyte, Asrock seem more likely to keep booting from the previously selected device.
This is not a huge problem or some serious warning. Just something to keep in mind in case adding the extra drives causes some goofiness.