7 Ways to Reduce Your Disk Size in Windows 7


If you have a SSD drive this would be more beneficial for you. If you have a regular physical spindle hard drive this guide would also help you reduce your disk size.

Over the years the number one issue that prevents SSD from being adopted wildly to a wider audience is the lack of disk storage space. Because of this, people would choose to spend extra money to buy larger SSDs, or spend much less buying a SSD that can just fit for a Operating System to install. While it’s true there is a limited disk space with SSD, there are also a number of ways you can use the limited storage space a bit wisely.

Here are 7 ways to reduce your disk space usage up to 10 GBs while preserving all your user data and programs that you have installed. Sounds too good to be true? Keep reading and find out.

1. Disable Windows Hibernation

This will instantly give you back few GB disk space depending on how large your memory is. By default, Windows will create a hidden hibernation file that matches the exact size of your total usable memory. If your system has 8GB of RAM, disabling Hibernation will instantly give you back 8GB of disk space on your OS partition. Check out the guide on how to disable Hibernation in Windows 7.

2. Reduce Page File Size

If you already have a relative large memory, you can reduce the virtual memory (Page File) that are being used by your system. It is not recommend to eliminate the use of Page File, but you can certainly reduce the size by manually. Actually, if you have a SSD installed, you don’t necessary need a page file. Setting it to 0 would give you back a few GB of space instantly.

3. Cleanup Services Pack Backup File

Windows 7’s SP1 (Services Pack 1) has been out for a while, and should be applied on to your system automatically by now if you have your computer set to automatically install the update. If you have it installed for a while and haven’t run into any issues after the update, it’s time to delete the Services Pack Backup file and gain your valuable disk space back. Check out the guide on how to delete Service Pack Backup files in Windows 7.

4. Reduce/Clear Browser Cache Size

Every browser will store images and contents of the sites that you always visit, unless you disabled browser cache. Different browser has different way to store your cache content. For a general way of removing browser cache we recommend this utility called CCleaner.

5.  Migrate User Profile From Primary OS Partition to a separate hard dive/partition

If all of the above methods are not enough for you, chances are you have too much data stored in your user profile. Usually user data (user profile) will occupy a large portion of your disk space, by following this guide you will learn how to change the Windows default User Profile location from C drive to D drive or any other partition. And by doing so, you are freeing up a large chunk of space out of your OS partition disk storage.

6. Use TreeSize or Other Utility To find un-common temporary files

TreeSize is an utility that lets you visually see how much storage each folder/sub folder is using. If you are an advanced user, this tool will let you find files that are unusually large hence hunting down the source of the issue will possibly eliminate those files.

7. Archive Old Files into ZIP

Yes, this is old school but still works very well if your primary goal is to reduce the disk space usage.

And Last but not Least

Clean up core dump files after Blue Screen Of Death (BSOD), and Windows System Restore points are all the tweaks you can to do reduce the disk space size.

Update: to clean up dump files go to start menu > type “Disk Cleanup” > choose C:\ or your OS main partition


See the screenshot above, check “System error memory dump files”

Jonathan Hu

Programming by day, Web Development, Canucks & Movies for spare time!
Co-founder of Next of Windows and a cool geek 🙂

Last updated: 11/12/2014

Posted in: How to , Tips & Tricks
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5 years 4 months ago

%SystemRoot%System32Cmd.exe /c Cleanmgr /sageset:65535 & Cleanmgr /sagerun:65535

copy the above line into run, in start, its a extended version of dik cleanup

4 years 7 months ago

with all the advanced word proc. applications available, why is the grammar so poor, so many misspelled and missing words. If someone is not very familiar with the topic (probably why they are here looking for help) this only adds to their frustration and problems. You have excellent advice and tips, but the grammar errors take so much away.
Sorry to nit pick, but I like your tips and advice and just don’t understand the errors.
Still a good site overall. Thank you.

Idiot's dad
Idiot's dad
4 years 9 days ago

OP plz disregard this nit picking online loser. I find your article extremely useful and informative. This guy has too much free time in front of a monitor he actually sat there and tried to point out all the grammatical errors.

4 years 7 months ago

I get loads of junk stored on a windows file server in work from time to time.

I use this program to view the whole hard disk.

Windows Directory Statistics


great bit of free kit.

Andrew M.
Andrew M.
4 years 17 days ago

For #6, I’d recommend WinDirStat, http://windirstat.info/, because it basically does the same function as TreeSize but provides a multicolored visual that helps better put the file sizes into perspective.

2 years 9 months ago

Really? Survey bullshit? Fuck you.