By Emily / Last Updated January 5, 2022

When need to upgrade Windows 7 system hard drive?

"I suspect that the hard drive that contains my Windows 7 operating system is likely to fail soon. So now I am planning to upgrade Windows 7 system disk to a new hard drive in case that everything will get lost once the system disk completely fails someday. But I am not keen on reinstalling the OS onto the new disk, which requires much time and effort. So is there any way to transfer the current Windows 7 system hard drive to another one without reinstallation?"

The Windows 7 OS hard drive is about to fail and needs to be replaced with a new one? The current system disk is almost full and you plan to upgrade it to a larger one? Or the Windows 7 runs quite slowly on the traditional mechanical hard disk drive (HDD) and you desire to upgrade it to an SSD drive? In any situation, you can clean reinstall Win 7 on the new HDD or SSD. However, that will cost you lots of time and energy, especially for those who don’t have much computer knowledge.

Therefore, most users are searching for a method to upgrade Windows 7 system hard drive without reinstalling OS and applications. Luckily, you can achieve that by cloning the entire OS system disk to another one, which transfers everything from the source location to the destination one and ensure they can work as they did in the source disk. Then what’s the best software to upgrade Windows 7 hard drive by disk clone?

Freeware to upgrade Windows 7 system disk without reinstalling

If you have decided to upgrade Windows 7 boot hard disk to a new one by cloning the disk, you can try the free partition manager called AOMEI Partition Assistant Standard. This freeware comes with the “Disk Clone Wizard” to help Windows PC users clone hard disk drive, solid-state drive, USB flash drive, SD card, and other types of storage device to another one. So, it is a great choice to clone Windows 7 hard drive to another new one, no matter it is an SSD or HDD.

Besides, it allows you to upgrade Windows 7 boot hard drive to a smaller disk by only cloning the used sectors to the destination disk via “Clone Disk Quickly”, a bonus for users who wish to upgrade a larger Windows 7 hard drive to a smaller SSD. Moreover, its “Migrate OS to SSD Wizard” enables you to transfer only OS drive to SSD or HDD, rather than the whole system disk. Both features can help you upgrade Windows hard drive and ensure the destination disk is bootable afterward. You can click the button below to download the freeware.

Download Freeware Win  11/10/8.1/8/7/XP
Secure Download

5 Steps to transfer Windows 7 to another drive for upgrade

Now you can check the following steps to learn how to upgrade Windows 7 system hard drive to another hard drive. The same method is also proper for upgrading Windows 8, Windows 10 or Windows 11 system disk. Before proceeding, please take a look at the below tips:

You should back up anything required on the destination disk because all the data will be deleted in the process.
If you are cloning Windows 7 system hard drive to a smaller hard drive, you can remove unnecessary apps or personal data on the source disk to make the used space much smaller to fit the destination disk.
If your current Windows 7 system hard drive is MBR, but the destination disk is of GPT partition style, you can convert GPT to MBR in advance because the free Standard edition only supports cloning MBR system disk to MBR disk.
If your current Windows 7 system hard drive is of GPT partition style, please upgrade to Professional edition that is able to clone GPT boot disk to MBR/GPT disk, or clone MBR boot disk to GPT disk.

Step 1. Install and launch AOMEI Partition Assistant Standard. Click the Windows 7 system hard drive you need to upgrade, and click on “Disk Clone” on the left panel.

Disk Clone

Step 2. Choose an appropriate cloning method based on your size of the source and target disk. Here we select the “Clone Disk Quickly” option.

Clone Disk Quickly

PS.: the “Sector-by-Sector Clone” is to clone all sectors to the destination disk. It is proper for cloning hard drive with bad sectors, or cloning BitLocker hard drive.

Step 3. Choose the destination disk and click “Next”. If it is an SSD drive, we recommend you ticking the “Optimize the performance of SSD” option to ensure sector alignment in the process.

Select Destination Disk

Step 4. Here, you can adjust the partition size on the destination disk. Then click “Next”.

Edit Partitions

Step 5. In the main interface, click “Apply” and “Proceed” to commit the pending operation.


After the clone is done, you can remove the old Windows 7 system hard drive on your computer and insert the new disk. That’s the most direct way to check if the Windows system is bootable on the new disk. Or you can keep all those two disks connected to your computer, reboot it, press a specific key (usually F2, F8, DEL, ESC or others) to enter BIOS settings. Then you change the boot order from the previous Windows 7 system hard drive to the new disk. Save the changes and you should boot computer from the destination disk.

Change Order


After reading this post, you will find it is very convenient and effective to upgrade Windows 7 system hard drive to SSD or HDD via cloning the whole disk. It saves you from the hassles of re-installing OS and other programs onto the new disk. Besides, this software also has many other wonderful functions like merging unallocated space into system drive, checking partitions for bad sectors, scheduling disk defrag, cloning a single partition to another drive, and more. If you are a Windows Server user, you can try AOMEI Partition Assistant Server.