How to Clean Up and Make Space on Your Windows 10 “C” Drive

The all-important “C” drive is, for most people, the core of the PC, where their operating system is installed and all the crucial system files are kept. Inevitably, this is also the drive that gets filled up most easily due to endless Windows updates, downloaded files that you forget about, and the fact that by default, everything saves to the “C” drive.

Here we show you how to clean up your drive, recover some space, and subsequently get it running nicely and quickly again.

Delete Temporary Files Manually

Below, we show you some tricks that clean out your various temporary files automatically, but those methods (like Storage Sense and Disk Clean-up) won’t do a complete job of clearing out temporary files, and there’s a good chance that the biggest, most hard-drive-hogging temporary files will remain in your Temp folder for a bit longer. (The automatic methods will wait for files to reach a certain age – one week, usually – before deleting them.)

Note: make sure you’re not running anything when deleting temporary files manually. If you delete temporary files related to an app you’re currently running, it may crash, and you may lose whatever you were working on at that moment.

To find your main temporary files folder, the default directory is “C:\Users\Rob\AppData\Local\Temp” (or you can hit Win + R , then enter %temp% ).

To see how much space the Temp folder is taking up, select everything in it using Ctrl + A , then right-click any file and click Properties. If you’re happy to go ahead with the delete, make sure everything is selected using Ctrl + A , right-click, then click Delete.

Use Storage Sense

Windows 10 has a handy feature called Storage Sense, which monitors the storage space on your PC, then jumps in and cleans things up if you’re running low. It does basic things like clean your Recycle Bin, remove old files in your Downloads folder, and delete temporary files on your PC.

To turn this feature on, go to “Settings -> System,” then click “Storage” in the pane on the left.

Click “Configure Storage Sense or run it now,” then in the new window click the slider under Storage Sense so that it’s “On.” You can then use the drop-down menu below to choose whether you want it to run when you’re low on space, daily, weekly or monthly.

In Storage Sense, you’ll also see that you can get it to automatically delete files in your Recycle Bin that have been there for a certain amount of time, and even files in your Downloads folder (which, from my experience, is definitely a place where unused files tend to outstay their welcome).

Scan for Large Files on Your Hard Drive

Using Windows Explorer, you can scan your entire hard drive for files based on their size. The amount of times I’ve found hefty redundant files sitting around for years is unbelievable.

To do this search, open a Windows Explorer window, select your “C” drive, then click the “Search (C:)” search box at the top-right of the window.

Type “size:” and you’ll get a bunch of autofill options showing varying sizes of files to filter for. You can use one of these presets, or if you want to get more specific about the size of file you’re looking for, you can type “size:>1gb” to look for files over 1GB in size and so on.

You can delete files directly from the results or right-click, then select “Sort by -> Size” to order them by size and quickly see which ones need deleting. Just by testing this, I’ve discovered an old Android 7.1 VM that I really don’t need any more. Just don’t delete anything that looks important. (For example, stuff from the “C:Windows folder” or game files that tend to be quite large.)

Uninstall Windows Shovelware and Space-Hungry Apps

In the “Apps & Features” window (you’ll find it by right-clicking the Start button), you can sort the list by “Size” to see which applications are the most HDD-hungry. You may be surprised by the results and may wish to remove apps as appropriate. Think about whether you really need all those space-hungry apps and delete as appropriate.

Another thing that may surprise you is that you’re the proud owner of games like Bubble Witch 3 Saga and Minecraft, which you never wanted in the first place! Simply uninstalling them from the “Apps & Features” list won’t suffice, however, and you will need to remove them using the Powershell. To do this, read our guide on how to uninstall pre-installed Windows apps.

Use Disk Clean-Up Utility

You’re probably aware of Windows’s built-in Disk Clean-Up utility but have not been using it. This is the first place to look to free up some space. To start using it, launch Windows Explorer, right-click on the C drive and select “Properties” from the list.

Once the Properties window is open, click “Disk Cleanup” to open the utility. Here, in the “files to delete” box, select all the checkboxes like System memory error dump files, Recycle Bin, set up log files, etc.

Once you have selected all the checkboxes you want, click on “OK” to free up the disk space occupied by the above files. How much space you free up depends on how badly you’ve neglected your “C” drive. As you can see below, I haven’t taken good care of the C drive at all. Shame on me.

Disable Hibernation

Hibernation is a handy feature you can use to easily turn off your computer while saving the current state so you can resume your work when you power it on. That said, it can take up a huge amount of disk space, as it reserves the amount of space on your hard drive equal to how much content is saved in your RAM. (So potentially, the more RAM you have, the more disk space it uses.)

To disable hibernation, open your Windows Control Panel by pressing Win + X and selecting “Control Panel” from the list. Once the control panel is opened, select “Power Options.”

2. Click on the “choose what the power buttons do” link in the pane on the left. This action will take you to the system settings window.

3. Click “Change settings that are currently unavailable.” This action will enable all the disabled options.

4. Scroll down and un-check the “Hibernate” checkbox to disable hibernation in Windows 10.

Delete Browser Cache and Cookies

Temporary Internet files like the browser cache and cookies take up a little bit of your C drive space, so clearing those temporary files will grant you some free space.

In Chrome, go to “Settings -> Advanced -> Privacy and security,” then “Clear browsing data.”

In Firefox, go to “Options -> Privacy & Security,” then under “History,” select “clear your recent history.”

In Microsoft Edge, go to “Settings -> Clear browsing data -> Choose what to clear,” and make sure to select the “Cached data” and “Cookies” options.

Remove Old Windows Update Files, Previous Installations

Windows has a tendency to hold onto old (and mostly redundant) system files. For the most part you can delete these files, particularly if you installed your current version of Windows over a previous version. To do this:

1. Open Windows Explorer, right-click the C drive and select “Properties.”

2. Click “Disk CleanUp,” then in the new window click “Clean up system files” to open the advanced disk cleanup window.

4. Select the “Windows upgrade log files” checkbox and, if you have anything there, the “Previous Windows installation(s)” checkbox. Unbeknownst to me, my secondhand laptop still has the “Windows.old” folder from the previous user, using up a whopping 31.5GB of hard drive real estate.

There are other checkboxes here, but for the most part they don’t use up a ton of space and can be left alone. When you’re ready, click “OK” to clean up your hard drive.

It’s good to go through this routine every now and then, but it’s advisable to make sure it doesn’t fill up in the first place. If you want to keep streamlining your Windows setup, see how to install Chromium on Windows 10. We also have a guide on how you can view network adapter details in Windows 10.

Related:

Content Manager at Make Tech Easier. Enjoys Android, Windows, and tinkering with retro console emulation to breaking point.

How to Delete Temporary Files in Windows

Safely delete temp files in Windows 10, 8, 7, Vista and XP

One really easy way to free up some disk space in Windows is to delete temporary files, sometimes referred to as temp files. Temp files are exactly what they probably sound like: files that your operating system only needed to exist temporarily while in use, but are now just wasting space.

Most temporary files are stored in what’s called the Windows Temp folder, the location of which differs from computer to computer, and even user to user. The steps for that are below.​

Manually cleaning out the Temp folder in Windows usually takes less than a minute but it could take longer depending on how large the collection of temporary files is.

You can delete temp files in the way outlined below in any version of Windows, including Windows 10, Windows 8, Windows 7, Windows Vista, and Windows XP.

How to Delete Temporary Files in Windows

Follow these simple steps to delete your temporary Windows files:

Windows 10: Select the Cortana search box just to the right of the Start button on the taskbar.

Windows 8.1: Right-click or tap-and-hold the Start button and then choose Run.

Windows 8.0: The easiest way to access Run is from the Apps screen.

In earlier versions of Windows, choose Start to bring up the search box or find Run.

Another way to open the Run dialog box is to enter the WIN+R keyboard shortcut.

In the Run window or search box, enter the following command exactly:

The q parameter suppresses confirmation prompts to delete the files and folders, and s is for deleting all the subfolders and files in the temp folder.

If the %temp% environment variable is for some reason not working, feel free to substitute in the actual folder location mentioned in Step 2 above, but make sure you type the correct folder path, and to be safe, surround the path in quotes like this:

Other Types of Temporary Files in Windows

The Windows Temp folder isn’t the only place that temporary files, and other no-longer-needed groups of files, are stored on Windows computers.

The Temp folder that you found in Step 2 above is where you’ll find some of the operating-system-created temporary files in Windows, but the C:\Windows\Temp\ folder contains a number of additional files that you no longer need to keep.

Feel free to open that Temp folder and delete anything you find in there.

Check Your Browser Cache

Your browser also keeps temporary files, usually in an attempt to speed up your browsing by loading cached versions of web pages when you revisit them. Review How to Clear Your Browser’s Cache for help deleting these types of temporary files.

Other, harder-to-find locations contain temporary files, too. Disk Cleanup, a utility included in all versions of Windows, can help remove the contents of some of those other temp folders for you automatically. You can open that in a Run dialog box (WIN+R) via the cleanmgr command.

Handy Tools for Easy Removal

Dedicated «system cleaners» like the free CCleaner program can make this, and similar jobs, really easy. Many free computer cleaner programs exist to choose from, too, including Wise Disk Cleaner and Baidu PC Faster.

Check how much free space your hard drive has, both before and after you delete temporary files, to see how much space you recovered.

The Best Way to Clean Windows, According to Our Cleaning Lab

That squeegee just might make a bigger mess.

Over time, pollution and grime accumulate slowly but surely on your windows, obstructing your view and blocking precious sunlight. The only thing worse? Thick streaks left behind by improper cleaning.

To keep your vista clear (and your light-loving houseplants happy), follow this expert advice from Carolyn Forte, Director of the Good Housekeeping Institute Cleaning Lab. With the right spray, cloth, and technique, your windows will have never looked better.

1. Choose a dry, cloudy day.

«Do this job in the blazing sun and the cleaner will dry onto the hot windows before you get to wipe it off, leaving hard-to-remove streaks,» Forte says. If the weather won’t cooperate, start on the shady side of the house.

2. Remove dirt and dust first.

Before you get started, sweep dirt from the window frame with a brush or vacuum it up with your machine’s dusting attachment. This will prevent dirt from turning into a muddy mess when mixed with a cleaner. If your window screen looks especially grimy, pop it out and wash with hot, sudsy water and a soft brush, then rinse and let dry before putting it back.

For quickly dusting shades and blinds, Forte recommends going over both sides with a microfiber duster or opening the slats and going over each one with a damp cloth and followed by a dry one.

LAB TIP: You can also refresh your curtains at the same time by putting them in the dryer for 15 minutes on an «air-only» cycle and rehanging quickly to prevent wrinkles.

3. Pick the right cleaner — and spritz generously.

Don’t hold back on the spray, especially if your windows look extra dirty. «You need plenty of cleaner to dissolve and suspend the dirt so it can be completely wiped away — skimp and you’ll be seeing streaks,» Forte says.

She recommends Invisible Glass Cleaner With EZ Grip. The fine mist from the bottle stays where you spray until you wipe it, meaning less drips and mess. Check out these other top-tested cleaners depending on the job too: