Change laptop's HDD with a faster one

Thank you all for your suggestions and especially thank you, Megahertz for your will to help me.
The laptop I want to make a bit faster is bought in Best Buy and it has the following spec:
Intel i3-5015 2.1 GHz, 6 GB RAM, 1 TB HDD, Win 10 64 bit Home
The HDD is ST1000LM024 HN-M101MBB and it scores low in PerfromanceTest.
The question about recovery is really important to me since I want to be able to revert back to original settings in case something goes wrong.
The laptop (Dell) came with preinstalled Win10 and the disk management is really strange:
Disk 0 Partition1, 500 MB, EFI System Partition
Disk 0 Partition 5, 852 MB, Recovery Partition
Disk 0 Partition 6, 12.7 GB, Recovery Partition
The rest was partition C with approx size around 900 GB which I was later divided to C 557 GB and D 359 GB.

The space occupied on C partition is approx 100 GB and the D is almost full of different data, movies, etc.
So, I was wondering how to migrate recovery partition also since the problem would probably arise only when I try to use this option since recovery is made for 1 TB drive. One more strange thing is that I actually have two recovery partitions and one system partition. I'm not sure what that means.
Right now I don't have a SSD drive, but will buy one in a future. I originally planned to migrate only system partition and C: to a new drive. Now I could use the following strategy:
- migrate only system partition and C: to SSD
- if satisfied with performance, I would make another image of SSD and that performed on a safe place in order to be able to restore when needed. Perhaps the recovery partition is not necessary since it can make some problems when recovery procedure is started.

What would you do if you were me? What can you suggest me? Since I don't have SSD right now I guess there is no need to guide me step by step. General steps would be just fine at the moment.

Thank again, I really appreciate it.

P.S: regarding the clean install of win 10, the computer came with already installed win 10 and there is no installation DVD (I guess this is called OEM). And since there is no installation disk, there is no win key etc, so the only option is to migrate already installed OS.

There is also one step that I didn't understand, and that is the necessity to copy to D:\user*name, since this step is already done because the complete c:\user folder is moved to the d drive (500gb)

The good news is that you have a UEFI BIOS. It makes it easy to clone partitions.

"P.S: regarding the clean install of win 10, the computer came with already installed win 10 and there is no installation DVD (I guess this is called OEM). And since there is no installation disk, there is no win key etc, so the only option is to migrate already installed OS."
- I'm not sure that the Laptop came with Win 10. It can be that it came with win 8.1 and then the fist owner installed Win 10 as the free upgrade. Look under the laptop and under the battery if there is a M$ COA sticker.
Anyway, you can always do a clean install on a computer that once had Win 10. You won't need a key. And you can download the installation disk from M$ for free. Download Windows 10

- It is also strange that \Users is on D: . This hasn't been done By Dell. Please give us the model of your Dell laptop.

To understand your system a little more, could you please take a snapshot of Explorer showing C: and D: with the sub folders? Use the sniping tool and upload using the paper clip on the reply window.
Don't understand why you have so many partitions. Could you please also take a snapshot of disk manger?

Megahertz07 said:

- I'm not sure that the Laptop came with Win 10. It can be that it came with win 8.1 and then the fist owner installed Win 10 as the free upgrade. Look under the laptop and under the battery if there is a M$ COA sticker.
Anyway, you can always do a clean install on a computer that once had Win 10. You won't need a key. And you can download the installation disk from M$ for free. Download Windows 10

- It is also strange that \Users is on D: . This hasn't been done By Dell. Please give us the model of your Dell laptop.

To understand your system a little more, could you please take a snapshot of Explorer showing C: and D: with the sub folders? Use the sniping tool and upload using the paper clip on the reply window.
Don't understand why you have so many partitions. Could you please also take a snapshot of disk manger?

Ok, the laptop came without any installation disk and without sticker. It was bought legally in Bestbuy store with installed win 10. It is very same like this one:

Regarding te partition D, I'm sorry because of the confusion I caused. I was commenting your steps:
- Use Kari tutorial to move C:\Users (SSD) to D:\Users. User Profiles - Relocate to another Partition or Disk
- Put the original disk into a USB case and copy all your data to D:\Users"Name"
- Use the free space of the original disk on the USB case to make backups.

The second step seemd unnecessary to me, couldn't understand why.

Regarding partitions of HDD please have a look in the attachment (the only difference from original setup is that I have created D: by splitting original C: drive)
Thanks!

askic said:

Hello Layback Bear,
I'm afraid but it is not possible to image/clone all partition because HDD is much bigger in capacity than SSD. That is why I want to clone only system and recovery partition

No you can clone from a bigger drive to a smaller one. You just need a program that can do it. One program that can do it and free is Clonezilla. A bit technical but there are a few tutorial online that show you how to do it.

- Yes, your computer came with Win 10.
- Win 10 doesn't come with a COA sticker with a key. As I mentioned, you can always reinstall Win 10 (clean install or recover) and it will activate because it once had a Win 10 on it.

As you haven't decided if you're going to buy and install a SSD (that I highly recommend):
- Replace the original HDD (1T) with the new one (500G).
- Download Win 10 from M$. Download Windows 10
- Create a Win 10 installation DVD or USB flash disk.
- Boot it as UEFI and do a clean install. Skip entering the key.
- When done, create a new D: partition shrinking C: (C: should remain with 85G)
- Buy a USB case and install the original HDD. Use it to copy your data files to the new installation.
hdd case, Orico - Newegg.com
Use it to do backups.

Thank you for your advices. Can you explain me one more thing? I do not understand how it is possible to activate win 10 on the same machine after it is formated? How win 10 knows that before it was installed on the same hardware? Where is this information stored? Really strange to learn that!