MacBook Pro High Sierra 2011 restart problem
MacBook Pro (15 Zoll, Ende 2011)
macOS High Sierra 10.13.6 (17G14042)
Problem: Mac on a regular basis independent of what task it's performing crashes and restarts.
The start screen with the Apple Logo then has fine blue-grey lines which also go through the Apple Logo.
Usually the first couple of times the start up process ends up in a blue screen.
I tried all known shortcuts (Cmd, Alt, P, R + Start; Shift, Ctrl, Alt + Start, etc.
Reinstallation of macOS helps for a while but then the problem occurs again.
When I do "exotic" things like use the WhatsApp desktop App the problem occurs much faster.
Etre Check result:
Hard drive too slow - The hard drive in this computer is too slow.
Obsolete hardware - This computer may be considered obsolete.
SSD too slow - SSD is showing poor performance.
High battery cycle count - Your battery may be losing capacity.
Unsigned files - There are unsigned software files installed. Apple has said that unsigned software will not run
by default in a future version of the operating system.
System modifications - There are a large number of system modifications running in the background. Runaway user process - A user process is using a large percentage of your CPU.
32-bit Apps - This computer has 32-bits apps will not work on current versions of the operating system. Kernel extensions present - This computer has kernel extensions that may not work in the future.
Hardware Information:
MacBook Pro (15-inch, Late 2011) - Obsolete! MacBook Pro Model: MacBookPro8,2
2,2 GHz Intel Core i7 (i7-2675QM) CPU: 4-core 8 GB RAM - At maximum
BANK 0/DIMM0 - Empty
BANK 1/DIMM0 - 8 GB DDR3 1600
Battery: Health = Normal - Cycle count = 1014
Unsigned Files:
Launchd: /Library/LaunchDaemons/de.avm.plc.service.plist Executable: /opt/avm/plc/bin/service
Details: Exact match found in the legitimate list - probably OK
Launchd: /Library/LaunchDaemons/com.avg.hub.schedule.plist
Executable: /Library/Application Support/AVGHUB/com.avg.hub.app/Contents/scripts/schedule.sh --ttl 14400 Details: Exact match found in the legitimate list - probably OK
Launchd: /Library/Application Support/AVGHUB/com.avg.hub.app/Contents/scripts/com.avg.hub.schedule.plist Executable: /Library/Application Support/AVGHUB/com.avg.hub.app/Contents/scripts/schedule.sh --ttl 14400 Details: Exact match found in the legitimate list - probably OK
32-bit Applications:
6 32-bit apps
Kernel Extensions:
/Library/Extensions
ufsd_NTFS.kext - com.paragon-software.filesystems.ntfs (Paragon Software GmbH, 15.8.105 - SDK 10.10)
I have deinstalled the AVG and the NTFS for Mac Apps which was not solving the problem.
Any suggestions how I could solve this problem?
Thank you very much!
MacBook Pro