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Question: MacBook Pro insanely slow after reboot

I've just rebooted my Macbook Pro mid 2012 and I've done a factory reset due to some problems before. I reinstalled el Capitan (which took all night to download) and now it took me so long just to set up a user account. Even when I type a letter the rainbow wheel appears and I have to wait.

Things I've done:

-Repaired disk (everything was fine)

-Done the PRAM thing

-Tried booting into safe mode but it's still very slow.

-Tried restarting

-Reinstalled OS

This should be naturally fast since I've installed an SSD inside, however as I was updating to High Sierra my laptop died due to me being away from it and the extension of the charger was taken. As I tried to restart the download I have experienced insane lag.

MacBook Pro, OS X Mountain Lion (10.8.5)

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Mar 9, 2018 1:31 PM in response to AyNoob In response to AyNoob

To help troubleshoot your Mac, I would suggest that you consider using EtreCheck and posting the resultant report for us to review. (Note: The EtreCheck reports does NOT contain any personal information.)

  • You can download EtreCheck from here.
  • Start EtreCheck from a normal user account. Optionally, you can run it from a user account with Administrator privileges.
  • Select a problem from the drop-down menu to enable the "Start EtreCheck" button. Optionally, you can add comments on what issues your Mac is experiencing, especially to aide others with similar Mac issues.
  • Click on Start EtreCheck
  • Allow the program to run to completion.
  • When done, select Report from the left-side window to display it.
  • Select the "Share Report" icon.

    Select Copy Report

  • Paste the report to your reply post.

Mar 9, 2018 1:31 PM

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Mar 9, 2018 3:13 PM in response to AyNoob In response to AyNoob

Though far from the only cause, one of the triggers for Really Slow is failing HDD or SSD storage, or a failing storage controller. There can be other problems with the hardware, as well. If you don't have complete and current backups of all of your MacBook Pro data, then getting current and complete backups of all of your data is your first and most important task. Then once those backups are available and as was quite correctly suggested earlier, please post up the output of the Etrecheck tool.

Mar 9, 2018 3:13 PM

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Mar 9, 2018 3:14 PM in response to Tesserax In response to Tesserax

EtreCheck version: 4.1.1 (4A179)

Report generated: 2018-03-09 22:27:29

Download EtreCheck from

Runtime: 34:00

Performance: Poor

Problem: Computer is too slow

Major Issues:

Anything that appears on this list needs immediate attention.

No uptime - No system uptime found.

No operating system found - Unable to determine operating system version.

No Time Machine backup - Time Machine backup not found.

Poor performance - EtreCheck report took over 10 minutes to run. This is very unusual.

Minor Issues:

These issues do not need immediate attention but they may indicate future problems.

Upgradeable - This machine’s RAM could be upgraded and the mechancial hard drive could be replaced with an SSD. This would dramatically improve your machine’s performance.

High battery cycle count - Your battery may be losing capacity.

Hardware Information:

MacBook Pro (13-inch, Mid 2012)

MacBook Pro Model: MacBookPro9,2

1 2.5 GHz Intel Core i5 (i5-3210M) CPU: 2-core

4 RAM Upgradeable


2 GB DDR3 1600


2 GB DDR3 1600

Battery: Health = Normal - Cycle count = 754

Video Information:

Intel HD Graphics 4000 - VRAM: 1536 MB

Color LCD 1280 x 800


disk0 - Samsung SSD 850 EVO 250GB 250.06 GB (Solid State - TRIM: No)

Internal SATA 6 Gigabit Serial ATA

disk0s1 - EFI [EFI] 210 MB

disk0s2 - Macintosh HD [Core Storage Container] 249.20 GB

disk1 - Macintosh HD (Journaled HFS+) 248.83 GB

disk0s3 - Recovery HD [Recovery] 650 MB

Mounted Volumes:

disk1 - Macintosh HD 248.83 GB (236.64 GB free)

Journaled HFS+

Mount point: /


Interface en1: Ethernet

Interface fw0: FireWire

Interface en2: Wi-Fi

One IPv4 address

4 IPv6 addresses

Interface en3: Bluetooth PAN

Interface bridge0: Thunderbolt Bridge

System Software:


Time since boot:

System Load: 1.30 (1 min ago) 1.30 (5 min ago) 1.09 (15 min ago)


System Status

Gatekeeper Mac App Store and identified developers

System Launch Agents:

[Not Loaded]
6 Apple tasks

[Loaded] 165 Apple tasks

[Running] 67 Apple tasks

System Launch Daemons:

[Not Loaded]
46 Apple tasks

[Loaded] 160 Apple tasks

[Running] 84 Apple tasks

[Other] One Apple task

Time Machine:

Time Machine Not Configured!

Top Processes by CPU:

Process (count) Source % of CPU

WindowServer Apple 5

kernel_task Apple 2

NotificationCenter Apple 0

AppleIDAuthAgent Apple 0

Apple 0

Top Processes by Memory:

Process (count) Source RAM usage

kernel_task Apple 485 MB (2)
Apple 368 MB

softwareupdated Apple 120 MB

mdworker (7) Apple 108 MB

WindowServer Apple 83 MB

Top Processes by Energy Use:

Process (count) Source
Energy usage (0-100)

WindowServer Apple
7 (2)

Safari Apple

hidd Apple
1 Apple

Virtual Memory Information:

Available RAM 1.87 GB

Free RAM 22 MB

Used RAM 2.13 GB

Cached files 1.84 GB

Swap Used 0 B

Diagnostics Information (past 7 days):

2018-03-09 21:54:21 Hang (once)

End of report

Mar 9, 2018 3:14 PM

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Mar 9, 2018 3:25 PM in response to AyNoob In response to AyNoob

Based on the Etrecheck report, You're very low on physical memory, as a starting point. That system model can usually unofficially be configured with a maximum of 16 GB of memory, and a maximum of 8 GB of memory per Apple. That system accepts two 204-pin PC3-12800 (1600 MHz) DDR3 SO-DIMM sticks.

I'd also see if Samsung has any diagnostics available for that specific SSD, and run those. (Not having TRIM support or having TRIM support disabled can make SSD writes very slow, too.)

I'd also disconnect all external devices from USB and FireWire as a test, as those can sometimes effect performance.

Mar 9, 2018 3:25 PM

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Mar 9, 2018 4:26 PM in response to AyNoob In response to AyNoob

The 2 places I’ve seen recommended most to buy reliable RAM are below. I have purchased RAM several times, a MacBook Pro battery, and a hard drive from Other World Computing and have always been very satisfied with the product and service. They have on-line instructions on how to replace the RAM. OWC has also tested RAM above what Apple states is the maximum. I had 6GB installed on an early 2008 iMac supposedly limited to 4 GB and noticed an improvement.


Other World Computing

Mar 9, 2018 4:26 PM

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Mar 11, 2018 11:27 AM in response to AyNoob In response to AyNoob

Lack of TRIM slows SSD writes. SSD writes to prepared storage are pretty fast, but erasing and preparing the sectors for write is very slow. TRIM moves that initialization process from when the data is written to the sectors to when the sectors are released such as when files are deleted, and which allows the SSD to perform what is slow work ahead of the need for the storage and to cache sectors that have been prepared for writing. This rather than initializing and writing right when the SSD sector is needed. (Internally, SSD storage sector activity and the usual wear-leveling-related and TRIM-related sector writing, mapping and remapping activity is substantially different from that performed on typical HDD storage.)

Lack of RAM slows system performance, as it means reduces the amount of app data and code that can be cached. As fast as SSDs are, they’re still slower than reading and writing data to RAM. When there is no free RAM available, macOS has to flush the data caches and (if the data is subsequently needed again) go get that data from HDD or SSD storage (or regenerate it), or has to swap the existing contents of RAM back out to HDD or SSD to free up enough RAM for what’s now needed.

All that written, I’d wonder if that SSD is just really slow due to lack of TRIM, or a due to an SSD or due to a hardware problem.

Your system is presently populating the Spotlight caches, which means there’s a whole lot of I/O happening. As a test, you could temporarily disable Spotlight, and see if performance improves.

You’re also headed for enabling TRIM and possibly for a diagnostic disk swap, to try to determine if there is an issue with that SSD. And clean off the entire external USB and FireWire, and see if performance improves as sometimes activity involving or errors with other I/O devices or with the cabling can effect system performance.

Mar 11, 2018 11:27 AM

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Mar 12, 2018 9:31 AM in response to AyNoob In response to AyNoob

I see.

Apple currently have my MacBook. They too were puzzled about this whole situation. I'll most likely get the results this week. Hopefully it's nothing major and too expensive.

Mar 12, 2018 9:31 AM

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Question: MacBook Pro insanely slow after reboot