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How to Upgrade Motherboard and CPU Without Reinstalling Windows 10/8/7

Updated on Apr 03, 2019 by Jean to Backup and Recovery

Summary:
You can upgrade Motherboard and CPU without reinstalling Windows 10/8/7 by simply following the two tricks on this page, including perform a system backup for universal restore and make changes in Registry.
PAGE CONTENT:
Why we wrote this article
Two ways to help upgrade Motherboard and CPU without reinstalling Windows 10/8/7
Option One. EaseUS Todo Backup universal restore
Option Two. Windows Registry edit

Why we wrote this article

Usually, when people decide to upgrade their computer hardware, especially the major parts like Motherboard and CPU, they tend to ask two questions:

1. Can I keep the Windows installation and all the configured system settings and installed programs?
2. Will Windows 10/8/7 license key be reactivated after replacing the Motherboard and CPU?

That's it! We're here to give answers. Now, it's time to explain some basic knowledge about how to begin with a simpler and less-riskier Motherboard and CPU replacement, without considering a fresh install of the Windows operating system. And, for a complete and perfect replacement, you need to get some Windows 10 reactivation tricks as well.

Get the answers

Though a fresh Windows install is not a problem for most home & office users nowadays, it's still necessary to keep this tedious job away. Plus, you must be aware of some noticeable aspects, reinstalling Windows OS from scratch will surely remove all your previously configured system, installed applications and even data. You don't expect a repeated work of reinstalling them all, right?

Meanwhile, with Windows 7, you didn't have anything worry about because Windows will reactivate after your upgrade. If it didn't, an automated phone call to Microsoft was all it took to get back up and running. But then came Windows 10, your only option was to reinstall everything including the license.

Two simple ways to upgrade Motherboard and CPU without reinstalling Windows 10/8/7

So, how to keep all your existing Windows after changing the Motherboard and CPU without reinstalling? You must prepare well for the work, and there are two options for you to choose, including create a system backup for universal restore and make changes in Registry.

Option One. EaseUS Todo Backup universal restore

Pros:

  • One-stop solution to transfer system from one hardware to another dissimilar hardware.
  • NO changes will be made to the previous system settings you're accustomed to.
  • Simpler and less-riskier operation than the Registry method comes behind.
  • A complementary backup and recovery solution for the Registry method comes behind.

Cons:

  • Only the commercial edition supports the universal restore. You can only backup and restore system on the same computer using the free backup software edition.

The universal restore feature provided by EaseUS Todo Backup Home will allow users to restore Windows system to another computer with dissimilar hardware. So, it's exactly what you need after replacing your computer hardware but don't want a fresh install of Windows.

Follow the steps to create a bootable USB and a full system backup image at first:

Step 1. Insert the USB (it's better within 16GB) on your computer. Launch EaseUS Todo Backup, click Tools -> Create Emergency Disk.

click tools and select create emergency disk

Step 2. Select Create WinPE emergency disk under the Boot disk type.

select create winpe emergency disk under the boot disk type and click proceed

Step 3. Click Proceed to create a bootable disk.

Step 4. After the EaseUS Todo Backup bootable disk is created. Go back to the main windows and choose System backup.

choose system backup

Step 5. Choose the bootable USB drive you've just created as the backup destination. Click Proceed to execute the backup process.

choose the bootable usb drive as the backup drive

After these steps, you got a bootable USB drive with a system image on it. Now, you can start upgrading the Motherboard and CPU immediately.

Second, follow the steps to perform the universal restore after the Motherboard and CPU replacement:

Step 1. Boot your computer from EaseUS Todo Backup bootable USB flash drive.

Step 2. On the main window of EaseUS Todo Backup, click System Transfer.

Transfer system to upgraded disk

Step 3. Select a system backup, which is kept on the USB flash drive. Click OK.

choose the system backup on the bootable usb drive

Step 4. Select the recovery location (the new hardware) to restore the system. Click Proceed.

choose the recovery location to restore the system

Wait for the process to complete, restart your computer and then you should be able to run Windows OS on your computer again.

That's how you finished Motherboard and CPU replacement without necessarily reinstalling the operating system on the new hardware like a breeze. Enjoy.

Option Two. Windows Registry edit

Pros:

  • The built-in Windows feature that doesn't require you to download.

Cons:

  • It's complex. Ask for higher level of computer skills.
  • Full of risks. Modifying Registry in an improper way may result in serious issues. (That's why even you choose this Registry way to upgrade Motherboard and CPU, it's still necessary to use EaseUS Todo Backup to create a full system image backup beforehand.)

Follow the steps below to modify Registry:

Step 1. Press the Windows + R keys together to bring up the Run dialog, type "regedit" (without quotes) in the empty box and then press Enter.

Step 2. Now the Registry Editor is open, navigate to the following key:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\msahci

Step 3. On the right pane, double-click "Start" and change its value from whatever to "0".

Step 4. Also, change the following Key's DWORD value data to 0:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\pciide

Step 5. Save the changes and exit Registry editor.

Step 6. Shut down the computer and replace the hardware. Then you should be able to boot Windows successfully.

After making the changes in the Registry, you can change the computer hardware without reinstalling Windows.

To activate your Windows after upgrading the Motherboard and CPU

The tricks are here. It's pretty simple.

  1. 1. Change your Windows 10 Local Account to a Microsoft Account.
  2. 2. Upgrade, and tell Windows 10 to reactivate.
  3. 3. Change your Windows 10 account back to a Local Account if you want.