My MacBook suddenly started running slow

When you see a beachball cursor or the slowness is especially bad, note the exact time: hour, minute, second.

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

Launch the Console 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.

The title of the Console window should be All Messages. If it isn't, select

SYSTEM LOG QUERIES ▹ All Messages

from the log list on the left. If you don't see that list, select

View ▹ Show Log List

from the menu bar at the top of the screen.

Each message in the log begins with the date and time when it was entered. Scroll back to the time you noted above.

Select the messages entered from then until the end of the episode, or until they start to repeat, whichever comes first.

Copy the messages to the Clipboard by pressing the key combination command-C. Paste into a reply to this message by pressing command-V.

The log contains a vast amount of information, almost all of it useless for solving any particular problem. When posting a log extract, be selective. A few dozen lines are almost always more than enough.

Please don't indiscriminately dump thousands of lines from the log into this discussion.

Please don't post screenshots of log messages—post the text.

Some private information, such as your name, may appear in the log. Anonymize before posting.

When you post the log extract, you might see an error message on the web page: "You have included content in your post that is not permitted," or "The message contains invalid characters." That's a bug in the forum software. Please post the text on Pastebin, then post a link here to the page you created.

Rid the MBP of CleanMyMac3. Check the developers web site for uninstall instructions.

I would recommend using Firefox, Safari or Opera instead of Google Chrome and its various parts. It is the resource glutton of browsers.

Reset the SMC and the NVRAM:

https://support.apple.com/en-us/HT201295

https://support.apple.com/en-us/HT204063

Then try a safe boot:

https://support.apple.com/en-us/HT201262

Any change?

Ciao.

Do you have Easy Find or Find any File. Either would help you find the lingering vestiges of Clean my Mac.

That Mac's logs indicate "Sophos" may be installed, or had been installed at one time but was improperly uninstalled. Remove it according to its instructions.

Sophos includes an uninstallation program named Remove Sophos Anti-Virus, installed in /Applications. Use it. If you no longer have it, you may need to install Sophos again for the sole purpose of uninstalling it correctly.

The following may be applicable: https://www.sophos.com/en-us/support/knowledgebase/119182.aspx

CleanMyMac must be removed, but depending on what you did with it the effects of having used it will remain. To remove CleanMyMac 3 itself, use its Uninstaller module, followed by these additional steps:

Remove the file ~/Library/LaunchAgents/com.macpaw.CleanMyMac3.Scheduler.plist

• To navigate to that file, copy and paste the following line into the Finder's Go menu > Go To Folder...

~/Library/LaunchAgents/

com.macpaw.CleanMyMac3.Scheduler.plist

• Then, open  (Apple menu) > System Preferences > Users & Groups > Login Items.
• Select the item CleanMyMac3 Menu
• Click the [—] (minus) button.
• Restart your Mac.

Beware that reinstalling OS X alone will have no effect on either removing CleanMyMac or reversing the damage it is capable of inflicting upon a system. To recover from the effects of having used it to modify OS X, the additional software you require and the essential files you may need follow the applicable recovery procedure below:

• If you have a backup that you created prior to using CleanMyMac, now is the time to use it. For Time Machine, boot OS X Recovery, and at the Mac OS X Utilities screen, choose Restore from Time Machine Backup. Choose a date preceding the installation of CleanMyMac.
• If you do not have a backup that predates the use of CleanMyMac, create one now. To do that read Mac Basics: Time Machine backs up your Mac.
  • The recovery procedure will require that you erase the Mac using OS X Recovery, and then create a new user whose contents will be empty. You will then be able to use Setup Assistant to migrate your essential documents including photos, music, work products and other essential files.
  • When doing so, select only your previous User account and do not select "Applications", "Computer and Network Settings" or "Other files and folders". De-select those choices.
  • Subsequent to using Setup Assistant, you will need to reinstall the essential software you may require, once again remembering to install software only from their original sources, and omitting all non-essential software.
  • "Non-essential software" is a broad category that includes but is not limited to third party "cleaning", "maintenance", and "anti-virus" products.

To erase and install Yosemite read: OS X Yosemite: Erase and reinstall OS X

To migrate your essential documents read: OS X Yosemite: Transfer your info from a computer or storage device and follow the procedure under Transfer info from a Time Machine backup or other storage device.

You're getting the usual results of posting "etrecheck" output on this site. According to it, "CleanMyMac" is not installed, so trying to remove "CleanMyMac" would be a waste of time. "Sophos" is not installed either.

When you're ready to get started on solving the problem, please post the information I asked for.

i am getting 4001 messages

what to do