Can't delete Crashplan because i don't have permission even though i'am admin

Solved the problem myself. Had to move the locked file to the desktop using Terminal.

Then remove system and user immutable flags using Terminal:

sudo chflags noschg “path to file”

sudo chflags nouchg “path to file”

That allowed me to delete. Thanks, anyway.

I think you're running up against a known bug in the Finder that prevents unlocking a file of which you're not the owner.

These instructions must be carried out as an administrator. If you have only one user account, you are the administrator.

Back up all data before proceeding.

Select the text on the line below by dragging across it. Don't include the blank space at the end of the line. Only the text should be highlighted.

sudo chflags -R nouchg

Copy the selected text to the Clipboard by pressing the key combination command-C.

Launch the Terminal application in any of the following ways:

☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)

☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.

☞ Open LaunchPad and start typing the name.

Paste into the Terminal window by pressing command-V, then press the space bar.

Now switch to the Finder and and select the item(s) in question. Drag into the Terminal window. More text will be added to what you entered.

Click in the Terminal window to activate it, then press return.

You'll be prompted for your login password, which won't be displayed when you type it. Type carefully and then press return. You may get a one-time warning to be careful. You don't need to post the warning. If you don’t have a login password, you’ll need to set one before you can run the command. If you see a message that your username "is not in the sudoers file," then you're not logged in as an administrator.

Wait for a new line ending in a dollar sign ($) to appear. You can then quit Terminal.

Please right-click the item now in the tmp folder and select Show Package Contents from the popup menu. A window should open showing a folder named "Contents." Drag that folder to the Trash and empty. Success?

Start up in safe mode and try again to uninstall the software.

Note: If FileVault is enabled in OS X 10.9 or earlier, or if a firmware password is set, or if the startup volume is a software RAID, you can’t do this. Ask for further instructions.

Safe mode is much slower to start up and run than normal, with limited graphics performance, and some things won’t work at all, including sound output and Wi-Fi on certain models. The next normal startup may also be somewhat slow.

The login screen appears even if you usually login automatically. You must know your login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin.

I've never used "CrashPlan," but I doubt that deleting the application is all you need to do to remove it completely.

Any third-party software that doesn't install from the App Store or by drag-and-drop into the Applications folder, and uninstall by drag-and-drop to the Trash, is a system modification.

Whenever you remove system modifications, they must be removed completely, and the only way to do that is to use the uninstallation tool, if any, provided by the developers, or to follow their instructions. If the software has been incompletely removed, you may have to re-download or even reinstall it in order to finish the job.

I never install system modifications myself, and except as stated in this comment, I don't know how to uninstall them. You'll have to do your own research to find that information.

Here are some general guidelines to get you started. Suppose you want to remove something called “BrickMyMac” (a hypothetical example.) First, consult the product's Help menu, if there is one, for instructions. Finding none there, look on the developer's website, say www.brickmymac.com. (That may not be the actual name of the site; if necessary, search the Web for the product name.) If you don’t find anything on the website or in your search, contact the developer. While you're waiting for a response, download BrickMyMac.dmg and open it. There may be an application in there such as “Uninstall BrickMyMac.” If not, open “BrickMyMac.pkg” and look for an Uninstall button. The uninstaller might also be accessed by clicking the Customize button, if there is one.

Back up all data before making any changes.

You will generally have to restart the computer in order to complete an uninstallation. Until you do that, there may be no effect, or unpredictable effects.

If you can’t remove software in any other way, you’ll have to erase and install OS X. Never install any third-party software unless you're sure you know how to uninstall it; otherwise you may create problems that are very hard to solve.

Trying to remove complex system modifications by hunting for files by name often will not work and may make the problem worse. The same goes for "utilities" such as "AppCleaner" and the like that purport to remove software.

Triple-click the line below on this page to select it, then copy the text to the Clipboard by pressing the key combination command-C:

/private/tmp

In the Finder, select

Go ▹ Go to Folder...

from the menu bar and paste into the box that opens by pressing command-V. You may not see what you pasted because a line break is included. Press return. A folder named "tmp" should open. If it does, move the undeletable item into it. Restart the computer.

Hi Linc, I had virtually the same issue that you solved for dudeguy but despite following all your instructions they didn't work me, but in doing so I realized my issue has one important difference. I have a copy of crashplan.app that made its way to a Time Machine local backup trash folder. This originally prevented me from deleting the entire folder. I was eventually able to delete all subfolders except those containing the crashplan.app. Now here's the key difference. In my case when one performs the Show Package Contents command on the crashplan.app that is in the trash it is empty, so your solution cannot be applied. when performing Get the "Locked" checkbox is grey and permissions for everyone is read only and cannot be changed manually or with "sudo chflags -R nouchg". Any ideas?

Please relaunch the Finder and try again.

Please do as before with this line (copy and paste, then drag and drop):

ls -@Oeln

Post the output of the command.