Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I want to install Windows 7 on a PC that currently has linux installed. My HDD is using the MBR partitioning scheme and its layout is like this:

130MB free space; swap partition(primary); 1.9TB ext4 partition(primary); 100GB free space

I know that Windows 7 needs to create both a boot and a root partition for itself. The question is if (and how) I can ask it to use the first 130MB free space as a boot partition and the last 100G as a root partition.

If that is not possible, I'd like to know what options I'll have regarding partitioning when installing Windows 7.

share|improve this question
You will need to install Windows on the 100GB of free space since 130MB isn't enough for Windows to be installed. – Ramhound Jan 3 '13 at 14:22
I'm talking about putting the "System Reserved" partition in the 130MB slot. All "from scratch" installs of Windows 7 I've seen have one and it's never more than 100MB, so it should fit. – Moshev Jan 3 '13 at 14:27
The "System Reserved" partition is not actually required. – Ramhound Jan 3 '13 at 14:34
Do you want to retain Linux? If so, you'll need to repair Grub after installing Windows. What you can do is install Win7 to the 100GB partition. One of 2 things will likely happen - either it will use the 130MB unallocated space for the System Reserved partition, or skip creating it altogether. – Karan Jan 3 '13 at 18:25
Adding a comment to note what happened: I did install to the 100GB section, but windows did not create a separate system partition. After that I reinstalled grub to the mbr and I can boot both linux and windows. I mostly wanted to be pointed at a detailed guide for partitioning using the windows installer. – Moshev Jan 7 '13 at 14:13

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Browse other questions tagged or ask your own question.