Yosemite upgrade

faisallizan wrote:

I'm using MacBook Pro 2.4 Intel Core 2 Duo already upgrade to 10.10.5 but my mac book became too slow WHY?? Any suggestion or anything

macOS 10.10. 5 is Yosemite

If this is a mid 2010 you can run

macOS 10.13.6 High Sierra

otherwise you are limited to El Capitan macOS 10.11.6

What exact Mac is this ?

Apple MacBook Pro 13-Inch "Core 2 Duo" 2.4 Mid-2010 ????

Have you tried to trouble shoot further you can:

—Try a SafeBoot https://support.apple.com/en-us/HT201262

Takes noticeable longer to get to the login screen, does a 5-15 minute disk repair before it fully boots up, and certain system caches get cleared and rebuilt, including dynamic loader cache, etc.

Login and test. Reboot as normal and test as caches get rebuilt.

In Safe mode third party system modifications and system accelerations are disabled, it removes malware, etc hampering smooth operation, however a reboot will put it back to normal mode.

This test will tell you if third party interference; extensions etc are not loaded in safe boot mode.

—Test issue in another user (or guest user) account https://support.apple.com/guide/mac-help/set-up-other-users-on-your-mac-mtusr001/mac

This will tell you if it a universal issue or isolated to your user/admin account. 

Uninstall any and all third party Antivirus, Cleaners, Optimizers, VPN, speeder uppers....

faisallizan wrote:

Thanks for the info.Will try it.

Too slow to check anything.even when try to upgrade it took almost 48 hours to finished.

MacBook Pro 15" late 2008

And there was no third party apps installed. Newly formatted.

https://discussions.apple.com/content/attachment/b2f13c5b-88c9-4d02-ae88-c6c8718b5f0f

Boot to an external Bootclone and test— compare performance. This will be a good test to tell you if your internal drive is failing.

— How to create a boot clone  https://discussions.apple.com/docs/DOC-10081