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226 votes

A tech from MacKeeper wishes access to my computer for licensing and activation. Is this a scam?

Do not do this. There are exactly zero reasons a tech, or anyone else for that matter, would need remote access to your computer to "fully license and engage a program." That phrasing alone ...
Allan's user avatar
  • 103k
103 votes
Accepted

How to monitor and control thermal CPU throttling in OS X?

Apple Silicon Macs From this answer: sudo powermetrics -s thermal which under normal conditions prints the following after a while: Current pressure level: Nominal Not quite sure whether this ...
ivanzoid's user avatar
  • 1,146
98 votes

A tech from MacKeeper wishes access to my computer for licensing and activation. Is this a scam?

MacKeeper IS Malware. Run MalwareBytes on your Mac and it will remove MacKeeper. Here's what you need to do: Uninstall MacKeeper as best you can Run MalwareBytes to get any pieces of it you missed ...
l008com's user avatar
  • 1,746
82 votes

Cursor freezes for a split second around every 10 seconds

I've had something like this issue (with the mouse freezing momentarily every few seconds), and it was related to my second screen. If I left this second screen turned off after waking the Mac from ...
Steve Doolan's user avatar
57 votes

A tech from MacKeeper wishes access to my computer for licensing and activation. Is this a scam?

Scam. Scam. Scam. Scam.... There is never - as in absolutely never ever until the sun boils and the earth burns - why an unsolicited request to access your computer from someone you don't know and ...
Stilez's user avatar
  • 659
51 votes

Screen Saver Stuck On, How To Escape?

I encountered this problem for the last two days on Catalina on my iMac. I tried some suggested methods, but lacked an Apple keyboard, and didn't restart or use SSH. What eventually worked for me, I ...
Cyberthal's user avatar
  • 631
38 votes

A tech from MacKeeper wishes access to my computer for licensing and activation. Is this a scam?

It may not even be MacKeeper. It could be scammers pretending to be MacKeeper, with the same end-goal as the Microsoft tech support scam: to gain control of your computer. Why on earth would ...
Harper - Reinstate Monica's user avatar
37 votes
Accepted

How to determine if my 2015 MacBook Pro can still handle current workloads?

I would look at three things Time is money List specific measurable benchmarks ( e.g. launch 4 specific apps each day and time them till usable, script a clean build of a representative app ) List ...
bmike's user avatar
  • 238k
31 votes
Accepted

ZSH paste from the clipboard a command takes a few second to be write in the terminal

The final problem is related to zsh. oh-my-zsh is executing bracketed-paste-magic, so I ended up removing it. Because oh-my-szh doesn't have a plugin manager for this. You have to override the file: ...
Raúl Martín's user avatar
28 votes

How to monitor and control thermal CPU throttling in OS X?

The official Intel Power Gadget has a Mac version.
Vebjorn Ljosa's user avatar
26 votes
Accepted

How can I have 1805 threads when I only have 4 virtual CPUs?

Scheduling Your 1,805 threads do not run simultaneously. They trade off. One core runs a bit of the thread, then sets it aside to execute a bit of another thread. The other cores do the same. Round ...
Basil Bourque's user avatar
25 votes
Accepted

What does "SecTaskLoadEntitlements failed error=22" mean?

You need a bit of introduction to understand what SecTaskLoadEntitlements really is/does: An application (.app) in OS X is really a folder containing a number of files, including the actual program, ...
jksoegaard's user avatar
  • 78.5k
24 votes
Accepted

Xcode 12.3 is not responding a few seconds after opening it

This is a recently reported bug with Xcode 12.3. I am not aware of any response from Apple yet, but you might be able to fix this issue by turning off the over-the-air test device builds. Top Menu: ...
user's user avatar
  • 436
23 votes

How to monitor and control thermal CPU throttling in OS X?

There is an open-source menu bar app for monitoring CPU throttling (and temperature) called Hot: https://github.com/macmade/Hot/ brew install --cask hot It shows the information at the menu bar ...
divieira's user avatar
  • 353
20 votes

Cursor freezes for a split second around every 10 seconds

My cursor was also freezing intermittently and it was also related to my multi-screen display. I unplugged my monitors and replugged them in and this solved the issue. I use a Macbook Pro and 2 Dell ...
diazcmyk's user avatar
  • 201
20 votes

Why is my MacBook Air faster than my iMac?

One main difference between the two computers is that your MacBook Air has an SSD - a solid state drive - for data storage, whereas the iMac has an ordinary hard drive. SSDs are typically an order of ...
jksoegaard's user avatar
  • 78.5k
19 votes
Accepted

MacBook Pro 2016 Left Click lag in games?

I found the solution after a long time searching.... As it turns out, a third party app called "Magnet" was causing the delay. Many other games have had similar issues due to this app running in the ...
ShrikeN's user avatar
  • 271
19 votes
Accepted

How to stress a MacBook Pro Retina?

Consuming All the CPU Cores The command below runs a yes instance for each CPU core and consumes a near maximum of the computer's processing capability: CPU=$(sysctl -n hw.ncpu) seq $CPU | xargs -I{}...
Graham Miln's user avatar
  • 44.2k
18 votes
Accepted

Are there credible technical bases for reports of “Apple deliberately slows down older devices when new software is released”?

Apple uniquely controls and shapes the experience of iOS. If you do not trust Apple, do not buy an iPhone. Considering the impact of Apple's past behaviour, Apple settles iPhone slowdown case for up ...
Graham Miln's user avatar
  • 44.2k
18 votes

Are there credible technical bases for reports of “Apple deliberately slows down older devices when new software is released”?

It's true that Apple added code to iOS update 10.2.1 in January 2017 so that if your battery had degraded sufficiently, it would run slower, to avoid sudden shut-offs if the power rose too high for ...
benwiggy's user avatar
  • 37k
17 votes

Screen Saver Stuck On, How To Escape?

If you have SSH enabled on your Mac and access to another computer on the same network you can start a terminal session and kill the screensaver. For example, I would open a terminal on my Linux PC ...
Coder Guy's user avatar
  • 271
16 votes

Are there credible technical bases for reports of “Apple deliberately slows down older devices when new software is released”?

I just wanted to add a different angle to this: The clerk warned you that the iPhone 7 is becoming an older model (released in 2016), and that you should take that into account when choosing what to ...
jksoegaard's user avatar
  • 78.5k
15 votes
Accepted

How to fix mac os high sierra, freeze?

I was faced with the same dilemma, it seemed like my MacBook Pro (mid-2015) was 'freezing.' I stumbled across a the fix to it after seeing your post - you can read about it here: https://jrgarrigues....
AFK's user avatar
  • 318
15 votes

ZSH paste from the clipboard a command takes a few second to be write in the terminal

In your ~/.zshrc file (create it if it's not there) you can set DISABLE_MAGIC_FUNCTIONS=true and it will disable bracketed-paste-magic which is causing this issue.
nelsontruran's user avatar
15 votes

How to determine if my 2015 MacBook Pro can still handle current workloads?

Nobody except you cares for benchmarks. That was the wrong tree to bark up to. What you need is specific use cases. "I need a new computer because task X must be done on the latest MacOS version, ...
Tom's user avatar
  • 261
14 votes
Accepted

Where are crash logs after a system freeze?

Apple moves the logs from version to version, but I would start with sysdiagnose. Open the terminal app and type sysdiagnose or press the keys to trigger the data collection process. How do you get ...
bmike's user avatar
  • 238k
14 votes
Accepted

How can I verify if Apple is slowing down my phone because of an old battery?

iOS 11.3 brings iPhone Battery Health (Beta). This new feature made available in this update provides users with info about the health of their battery, allowing them to determine if the condition of ...
grg's user avatar
  • 203k
14 votes

Does battery condition have anything to do with macbook pro performance?

Yes, it could have something to do with the battery - and yes, it could be something else. In short, it's not possible to know without examining your actual hardware. The "Replace Soon" warning ...
jksoegaard's user avatar
  • 78.5k
14 votes

How do I solve the Magic Trackpad 2 lagging on macOS Monterey?

Solution: turn the Magic Trackpad off and on again. It's easy to forget they have a power switch: on the back edge where the power cable plugs in, there is a small sliding switch. I turned it off, ...
David's user avatar
  • 1,437
13 votes

Monitor GPU performance on OSX

You can use Activity Monitor that comes with MacOS in Applications>Utilities Choose Window>GPU History or press ⌘4
fvlasie's user avatar
  • 133

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