Yevu wrote:
Macbook pro 2019, with parallels running on it, keeps crashing and turning off. Then, when plugged into power, the fan blows very shortly and regular intervals. The macbook will not turn on. Has anyone had a similar problem, or know a solution?
On a Intel Mac
Try resetting the SMC http://support.apple.com/kb/ht3964
Try resetting NVRAM/PRAM http://support.apple.com/kb/ht1379
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 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. Caches get rebuilt automatically.
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 all third party apps that are Cleaners/Optimizers/VPN/Anti-Virus
all known to cause issues on the macOS
If your Mac doesn't turn on
https://support.apple.com/en-us/HT204267