Benefits of deleting temporary files

  1. Mac Outlook Temp Folder
  2. Outlook Temporary Folder Mac
  3. Mac Outlook Temporary Download Folder Permissions

May 17, 2019. Feb 20, 2018.

Sep 11, 2017. Dec 21, 2018.

Storing temporary and cache files, alongside everything else stored in your Mac, takes up space that could be put to better use. Depending on how many apps you use on a regular basis, you could be storing dozens - even hundreds - of cache and temporary files without realizing it, all incrementally slowing your Mac down.

Cache and temporary files can include everything from web browser cache and history, including cookies and passwords, to messaging cache folders, partially completed downloads, app temp files and folders, and so much more that is taking up space on your Mac.

Types of temporary files:

  • browser cookies
  • outdated system logs
  • application cache
  • intermediate document versions

Why do browsers collect cache?

Most web browsers will only try to hold onto a limited amount of cache data and cookies. This helps your browser run faster when loading a web page that you’ve visited before. But it won’t hold onto everything. Most will try and self-clean this data after a period of time.

And apps, also hold onto as much as they need, and will sooner or later, try and clear out that data. Automated cache clearing doesn't always work and sometimes when an app or web browser isn’t working properly - or if you've fallen victim to malware or adware - a direct intervention is needed to clear out temporary files and cache data to get an app, browser or other application to work as it should.

The old caches may cause software glitches and compatibility issues.

Delete temporary files with CleanMyMac

Clearing out unnecessary temporary and cache files will increase the amount of hard drive space available, and it should improve the overall performance and speed of your Mac. You can do this one of two ways: manually — which we cover below — or using a time-saving tool, such as CleanMyMac X.

Get a free version of CleanMyMac — a link to free download

According to the developer, this app removes up to 74 GB of junk on average Mac. Most of it is system junk, in other words, temporary files and caches. If you are overloaded with temporary files and too much cache data, it will highlight this and you can safely delete everything, saving you time and space. Another way to clear out cache files and data is to go through your files manually. Here is how you do that.

How to delete temporary files manually

Before you begin, always back up your Mac. Whether you use Time Machine, iCloud, or a third-party hard drive or cloud-based storage system, make sure you’ve got everything backed up.

There are 4 main types of caches you'll encounter on your Mac:

Here is how to clear temporary files from a Mac:

  1. Quit or close any open and active apps. To make sure this is done, Force Quit anything that hasn't closed properly. Anything that needs to be closed that way might benefit from a cache clear out.
  2. Go to the Finder in macOS
  3. If you are using Sierra or a more recent OS, hold down the SHIFT key. Or for those using an older macOS, press down the OPTION or ALT key, and pull down the Go menu in Finder.
  4. Choose Library from the options presented in the Go menu
  5. Once you’ve got access to Library, go to the Caches folder

  6. Now this will show you the full range of cache and temporary files that are being stored on your Mac. Be certain which ones you want/need to delete before sending them to the Trash.
  7. To send cache folders to the Trash, either right-click and select Move to Trash, or drag and drop them into the Trash.
  8. Empty the Trash — the same way you would when removing any other files - to clear them out of your Mac.

Typical cache file looks like this: “”.

Deleting browser cache

Unless you are either deleting everything, with some apps you can make these same changes in settings. In every web browser, you can clear the cache, cookies, saved passwords and browser history.

How to empty the cache in Safari:

Other web-based apps also have settings that give you control over the cache and cookies, so to avoid deleting everything, you might want to go to the specific app containing the data and clearing it out that way.

Another way to safely delete temporary files, cookies and cache is to Restart your Mac. If you keep it running and in sleep mode for days or weeks at a time, there are a lot of automatic maintenance systems that can’t operate until you restart or shut down your Mac then start it up again. Restarting your Mac is doing it a big favor and should help it run smoother

Locate hidden temporary folders with CleanMyMac

Did you know, there is a way to peek under the hood of your Mac? The tool we've just told you about, CleanMyMac X has an instrument for viewing the inner parts of your macOS. It's called Space Lens. It looks like this:

These 'bubbles' represent folders of different size. Here you can explore the Library and other distant parts of your computer.
Get the app here for free (a link to the developer's site)
Once you install the app, click the Space Lens tab in the sidebar.
Explore! This tool is really fun.

The outdated system files may hold back the performance of any Mac, even the most powerful models. And that's why Mac cleaning software exists. Either you choose a manual or automatic cleanup, your Mac will thank you for it. Hope you've learned something helpful today. Come back for more Apple/Mac tips.


As the blog title suggests, we are going to learn the method (manual) to delete the temporary Outlook files for Windows 10 Operating System. But, we cannot just directly move to this method unless we know about the Outlook temporary files and the need for its removal. So, let us have a discussion.

Whenever the Outlook user opens or adds the emails’ attachments, a copy of these attachments gets stored at the sub-directory of the Outlook Temporary Internet Files folder. First, Outlook searches for the .OLK folder in the registry to save the temporary attachment files and if it does not exist, it creates the new folder itself. This takes place to ensure that received attachments are secured at another place.

The basic path location for this temporary internet file for attachments is

C:Users%username%AppDataLocalMicrosoftWindowsTemporary Internet FilesContent.Outlook

Now, we know about the Outlook temporary files and its creation but, it is still not clear why we need to delete these files. Our next section would focus on the issues which could be created by these temporary Outlook files, which ultimately affect the Outlook performance.

Why do temporary Outlook files need to be deleted?

The Outlook user faces the following problems due to Outlook temporary files:

  • Security Risks – Sometimes, even if the attachments are deleted, opened and then closed or the Outlook has been shut down accidentally, then also the copy of these attachments get stored at the temporary folder location mentioned above. And, a person with knowledge of this location can easily gather the confidential information within these attachments. So, to secure your confidential or sensitive information from data theft, it is recommended to delete the temporary Outlook files from your system.
  • Disk Space – Sometimes, users cannot access the Outlook attachments they receive via emails as there is no space within the Outlook temporary files folder. It happens when a load of attachments has been received in Outlook with time, and the temporary file folder is untouched. It directly affects Outlook performance, and the user has to suffer. Hence, the user must delete the Outlook temporary files to fix ‘Outlook attachments unable to access’ issue.

These above-mentioned reasons point to the need for deleting the temporary Outlook files. Now, let us know how you can locate and then delete these files from the temporary folder created on your system.

Learn to delete Outlook Temporary Files

Method 1 - Locate temporary files location through windows registry

This would be the main section for the blog readers. It is not at all a task to delete the temporary files once you have located the files. The complete process is:

For different versions of Outlook, the OLK folder path is different which you can get directly from the registry key created by Outlook. To get the path address, open the Run window by pressing Windows+R and type regedit. Click OK. The Registry Editor page will get open. Here locate the registry key as per your Outlook versions by following the given paths.

Outlook 2016-
Outlook 2013-
Outlook 2010-
Outlook 2007-
Outlook 2003-

Reach up to Security location from the above path and double-click “OutlookSecureTempFolder” key on the right pane to open it.

Press CTRL and copy the file folder path.

Then, press Windows+E to open the Windows explorer page. On the top address bar, paste the copied path and press the Enter button on the keyboard. The temporary files are visible now. Just select and delete the ones which you want to; and for permanent removal, delete it from the Recycle Bin as well.

The above method is effective for cases when the Outlook is well configured, the ‘OutlookSecureTempFolder’ field exists in the registry and its value points to a valid location on your machine. But, if any of these conditions are not met, the Windows Operating System uses the Temporary Internet Files folder as the parent folder for storing its temporary files. It creates a new folder under the Temporary Internet Files folder with a randomly generated name. In this scenario, you will need to locate this path in a different way as it will not be available through the method discussed above.

The path of Temporary Internet Files varies from one version of Windows to another. In the below section, we will provide the path based on the Windows Operating System version:

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For Windows XP Operating System
C:Documents and Settings usernameLocal SettingsTemporary Internet FilesContent.Outlook
For Windows 7 and Windows Vista Operating System
C:Users username AppDataLocalMicrosoftWindowsTemporary Internet FilesContent.Outlook

Mac Outlook Temp Folder

For Windows 8 and higher versions

Now, we have provided the default path for each of the operating systems. But there is a small difference that comes into picture based on the version of your Outlook application as well.

For each of the windows versions, you will find a subfolder with a randomly generated name for Outlook 2007 and higher versions. You can directly go to this path and mentioned above and find the randomly generated folder and delete all its contents to get rid of all the Outlook temporary files.

Outlook Temporary Folder Mac

However, if you are using an older version of Outlook such as Outlook 2003, you will need to look into the ‘Temporary Internet Files’ folder for a name as per the registry entry. Then only you will you be able to find the folder containing temporary Outlook files.

So, we have covered two methods to identify the location of the folder containing temporary Outlook files. You can use any of the methods that suit you and clean up your Outlook temporary files. This should also help you in fixing the ‘Attachments not opening’ issue. But this is one of the possible resolutions for attachments issue. If it doesn’t fix it for you, you may be having corrupt PST. If that is the issue, you need a promising and efficient tool such as Kernel Outlook PST Repair. It is an efficient tool that can fix PST corruption in very quick and easy steps.

Mac Outlook Temporary Download Folder Permissions

In this blog, we discussed what Outlook temporary files are and what their significance is in the proper functioning of Outlook. Then, we discussed how these temporary files can sometimes lead to the issue of Attachments not opening. Also, we have discussed how these temporary files can be exploited by hackers to retrieve confidential information from your system. We provided the registry path for all active Outlook versions. Finally, we provided the field in the registry entry, which contains the path to the location of temporary files. We also recommended the Outlook PST repair tool, a powerful tool to fix PST corruption in quick and easy steps.