How to fix AddressBookSourceSync?

by Julie Splinters - -
12

Question

Issue: How to fix AddressBookSourceSync?

Hello. AddressBookSourceSync error appears in the middle of my screen constantly. It even leads to the process when pop-up after pop-up go one after the other when there are at least 4 layered on top of each other. It asks to enter my password and log in. It wants me to approve iCloud usage, I also find it running in the background that slowdowns the device significantly. It is annoying and I don't know what to do. Help!

Solved Answer

AddressBookSourceSync process running in the background and the pop-ups asking for permissions appear to bother users online fro a while now.[1] Crashes, constant freezes, and general slowness of the machine continue to annoy Mac users, so there are many people looking for answers and solutions. 

The random pop-up and the AddressBookSourceSync process keeps showing up and even consumes the vast majority of Mac's resources, which decreases the performance significantly. When CPU and RAM usage goes up to the max, there is nothing you can do on the device normally without frustration.[2] Upgrading the operating system or changing the user account gives nothing.

Unfortunately, AddressBookSourceSync has more symptoms than resource consumption. Pop-ups asking to enter keychain access passwords, multiple windows like this, pop-up repetition at least a few times a day. The intrusive behavior keeps the user from accessing normal functions and concentrating on their work, so efficient work is barely possible. However, there are a few solutions for the pop-up windows, resource consumption issue.  AddressBookSourceSync fix

How to fix AddressBookSourceSync

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For some users, the issues start appearing after the OS upgrade to 10.7.1, but this is not a reason why every user can encounter the AddressBookSourceSync pop-up. Also, stopping the process via Activity Monitor works in some of the cases only. We have a more in-depth guide that should provide at least a few solutions for you.

There is a common belief that macOS devices cannot get malware issues, and it is the only machine out there that is not affected by malicious programs. However, Mac Malware[3] is the real issue, and you should be prepared to scan the device for malware with anti-malware tools, for example. Also, some files that need to ger repair, particular virus damage, and issues with system files may interfere with some of the listed solutions, so run Reimage before continuing. 

Fix the slowness issue due to AddressBookSourceSync

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To repair damaged system, you have to purchase the licensed version of Reimage Reimage.
  • Launch Contacts.
  • Click on File from the menu bar at the top of the screen.
  • Choose Export.
  • Select Contacts Archive.
    AddressBookSourceSync contact exporting
  • Select the location where to save the file and set the file name. 
  • Go to icloud.com and check if you have all the contacts there.
  • Launch Activity Monitor and make sure that AddressBookSourceSync is not running. Double-click and select Quit from the window. 
  • Go to ~/Library/Application Support/Address Book/ and hold the option key down while you select the Go menu in Finder. 
    Activity Monitor shows all the background processes
  • Delete everything, except plist.
  • Then go to System Preferences and click on iCloud.
  • Navigate to Contacts and check off the box.
  • Recheck the box again and wait for the sync start. 
    iCloud contacts

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About the author

Julie Splinters - Computer optimization specialist

When it comes to computer optimization, Julie Splinters is the expert. Whether it is a slow smartphone, Windows, Mac or Linux operating system, she will find a solution within minutes.

Contact Julie Splinters
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