When your computer has multiple drives or partitions (e.g. C + D and E for data, or an SSD and a secondary hard drive), and you need to transfer to a brand new computer, it is important to pick the right tool for the job.

How to move all the drives to the new computer correctly? What happens if the old computer has 2 drives, but the new one only has 1? What if the sizes are different?

In this tutorial, we'll show you exactly how to do this transfer automatically, and even transfer your programs, profiles, accounts and all files while you are at it.

The tool we will be using is Zinstall WinWin.

It automatically transfers all the drives and partitions you have.

If your new computer has similar drives - e.g. you have C, D, E on the old computer, and C, D, E on the new one - Zinstall WinWin automatically transfers C to C, D to D, and E to E.

Otherwise, if for example you have C and D on the old computer, but only have C on the new one, it automatically creates a virtual shortcut drive D on the new computer to replicate the original setup, and transfers the contents of D accordingly.

How to transfer multiple drives to a new computer

Run Zinstall WinWin on your current computer (the one you are transferring from).
Note: You can get Zinstall WinWin here.
Run Zinstall WinWin on the new computer
1. You don’t need to do any configurations for the computers to connect – it’s automatic
2. If the computers are already connect to same router, same Internet connection, or same wireless connection, you don’t need anything else
3. If the computers are not connected at all, connect them with a network / Ethernet cable
If you’d like to select which applications and files you want to transfer, press the Advanced menu. If you just want to transfer everything, you don’t need to go to the Advanced menu.
Press “Go” on the Windows 11 or Windows 10 computer to start the transfer

Note: you do not need to manually do anything about the multiple drives – Zinstall handles that automatically.

That’s it!

Once the transfer is done, everything from all of your drives will be on the new computer – programs installed and working, files in place. It is the same transfer that moves everything to a new computer with Windows 11 – all drives included.

The new computer will feel just like home.

What if the new computer has fewer drives than the old one?

That is the most common case – for example, an old PC with a C: system drive and a D: data drive, moving to a new laptop with a single SSD. Zinstall handles it automatically: everything is transferred onto the new computer’s drive, and a virtual shortcut drive D is created to replicate the original setup – so programs that lived on the old D: arrive installed and working, and anything that looks for D: still finds it.

Do I need to disconnect my other drives before the transfer?

No. Leave the old computer exactly as it is, with all drives connected – they are picked up automatically as part of the same transfer. If there is a drive you do not want transferred, you don’t need to open the computer either: simply exclude it in Zinstall’s Advanced menu.

What if my programs or files are on the second drive?

They transfer just like everything else. Programs installed on a D: or E: drive – or files kept on a separate data drive – are moved along with their settings, and will run on the new computer even if it has a completely different drive layout.

Which drive combinations does this work for?

All of them. Two drives to one, two drives to two, three drives to one – an old HDD plus SSD going to a single new NVMe drive, or a secondary data drive on the old computer landing on the primary drive of the new one. If the new computer also has more than one drive, that works too: any combination of source and target drives is supported.

What if my new secondary drive has a different drive letter?

If your data drive on the old computer is D for example, and on the new computer you have C + E, all you need to do is change the new E to be D instead. Here is how to do that, using Windows’ built-in Disk Management:

On the new computer, right-click the Start button and choose Disk Management (or press Windows key + R, type diskmgmt.msc and press Enter).
In the drive list, right-click the E: drive and choose “Change Drive Letter and Paths…”.
Press “Change”, pick D from the letter list, and confirm.
If D is already taken (often by a DVD drive or a card reader), first give that device a different letter the same way – then assign D to your drive.

Do this before starting the transfer – with the letters matching, the contents of the old D land on the new D automatically.

Ready to transfer all your drives to the new computer?

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Video tutorial – how to transfer everything from old computer to new computer

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