Question: Hidden Installation of Windows

I am working on a solution for a friend concerning his laptop. He proposed an idea to me and I would like to see it through, but I'm not quite sure how I am going to execute it.

The idea is this: To modify his boot up sequence so that when he just turns on his laptop it boots into an instance of Windows 10 that looks and feels normal, has a bit of internet browsing history, a few files here and there, but in reality this isn't the instance he uses. He actually uses a hidden installation of windows 10, encrypted and secure of accidental discovery by pressing a key sequence at boot-up or something of that nature. That's the part I am fuzzy on. I know for Linux you can actually install the boot-loader on a separate drive and you boot from that drive to get to your OS. That's actually how I boot my machine, but I don't know if this is possible with windows. Actually I'm not even positive you can have two installations of the same version of windows without them wanting to eat each other.

I suggested the flash-drive option to him and he wasn't too thrilled about it, but if it's the only way, I think I could convince him to get one of those flash-drives that are the size of wireless mouse receivers. That way he can set it to automatically boot from USB, but as soon as he takes it out, it returns to decoy mode. The ideal solution would be to not have the flash-drive at all and just hold a key down or something.

So the full list of requirements would be as follows:

  • Hidden - Undiscoverable by someone who boots the laptop
  • Encrypted - If someone does find it, they can't access the data
  • Same OS as the decoy
  • Preferably not have a flash-drive to maintain

Any help on this topic would be appreciated. I would like to know, first and foremost, if this is possible and what tools you might use to accomplish this. Thanks

6 Responses

Hey there,

I never tried that one before but, almost for sure you need to create a partition on the HDD and encrypt it before installing the "wonderful windows 10"... Or create the partition, install the OS and then encrypt it. Now I don't know how would it behave when it boots (even if it does) and how you make it boot (maybe some sort of custom boot-loader)...

Sorry I couldn't help much

If your friend wants to boot from a hidden version of Windows 10 for "security" I would, in all seriousness, suggest he reads up on the hideous security problems that Win10 suffers from in terms of keeping your data private. If that is not sufficient to persuade your friend to adopt a Linux OS then they really cannot be helped.

This is a big reason why I hope the steam OS really gets off the ground. Hopefully more developers will start writing native Linux games and we'll get more driver support. The only reason I still run Windows is because I'm big into my gaming.


I have been over this with my friend, but he's more of an operational type of person, rather than a technical one. It was just of an idea of his to pass general scrutiny.

Search up Vera crypt, it does exactly what you want (somewhat). You can make a hidden partition that will only be opened when you enter a certain password. Plus it will encrypt you entire hard drive so that even if people get you hdd they won't be able to know about the hidden partition.


Hey Washu,

I actually stumbled upon this last night while I was doing some research and this is definitely the way to go. I already tested this inside a VM and whenever he's ready, we're going to implement this on his laptop.

Thanks for your input.

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