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

Possible Duplicate:
Partition C disk running Windows 7 in half

I just got a new laptop with 750GB with Windows 7 pre-installed, office and some extra apps for the laptop.

The thing is I want to create add a new partition. How do I do it without erasing these apps? I tried to boot from a System Image I created earlier but it doesnt have the option to partition..

share|improve this question

marked as duplicate by Ƭᴇcʜιᴇ007, Tom Wijsman, surfasb, random Mar 14 '12 at 16:48

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

some free software to resize a partition will do it. not sure which. the idea is resize the partition to make it smaller then you'll have room to create a new one. – barlop Mar 10 '12 at 23:21
I tried partition mgr and other partitioning software but it keeps failing, im gettitng "i/o error". Btw my system is booting on SSD – mutu Mar 10 '12 at 23:25
i've done it on spinning disk drives many times, used partition magic(not free). You can't resize a partition that you are booting from. So you have to boot off another partition, or a CD or floppy disk or USB stick and run the partition program. Partition magic for example when I used it had "rescue disks" which was a partition magic for DOS you could boot off a floppy. Probably some of the partition programs you've tried could boot off CD. – barlop Mar 10 '12 at 23:32
I just looked up about Partition manager which you said you tried, as well as a free home edition, has a free bootable cd too, so you can boot off that. I have heard good things of gparted and partedmagic which is based on it. – barlop Mar 10 '12 at 23:43
will i be able to add partition during boot up? – mutu Mar 11 '12 at 0:29

Control Panel -> Administrative Tools -> Computer Management -> Disk Management. Right-click on the volume you want to resize, click "Shrink," then create your new partition in the empty space generated.

Here are some screenshots of the process on HowToGeek - they're Vista screenshots, but the process is the same in Windows 7.

As mentioned, you won't be able to resize the boot volume live, but you can always place the drive in a desktop or external enclosure temporarily.

You can do this from your Win7 installation disk as well. I'll defer to TechNet for the instructions as I'm not currently at a Win7 box to confirm.

share|improve this answer
I never tried that before. Will my files be safe by shrinking? – mutu Mar 10 '12 at 23:56
Easy in Vista and Windows 7 usually. No special tools needed. – Dave M Mar 10 '12 at 23:56
@mutu I can't answer that, really. Assuming there's absolutely nothing wrong with the HDD, if you do it in the GUI (Disk Management)? Yes, definitely. If you do it using the command prompt (diskpart)? Maybe. I've never lost data when resizing partitions in Vista/7, but there's a first time for everything. (edit: This sounds a little alarmist, but my point here really is 'If you absolutely can't afford to lose it, back it up.') – EKW Mar 11 '12 at 0:10
I try to do it but it will only allow me to shrink from 714GB to 340GB. I need 500GB at least – mutu Mar 11 '12 at 0:26
That's where the "unmovable files" mentioned in the links come in. I've never had much luck moving them (They can be things like the MFT or pagefile. Given that you've shrunk by half, I'd assume the MFT is the issue.) There are some further recommendations at… , but I can't recommend any of them at this point unless you have a good backup. – EKW Mar 11 '12 at 1:53

Try GParted.

GParted is the best application that I tested, but it is for Linux. You can use it with a Linux Live CD.

If you resize or create a partitons, the softwares will be safe. But be careful — don't erase the partitons!

share|improve this answer

Not the answer you're looking for? Browse other questions tagged or ask your own question.