How to uninstall MacOS High Sierra??

You appear to be an outlier. There have not been reports of "so many issues" from very many other users. In fact, this upgrade seems fairly benign.

To remove High Sierra in general, erase your disk and restore your Mac from the most recent Time Machine Backup from before High Sierra was installed. DO NOT Erase your disk if you do not have such a Backup, or all your files will be lost!

If you could post the exact model of computer you are using (for example, there are more than 50 computers called MacBook Pro) the year, the screen size, the disk type (SSD or Rotating Magnetic drive) Readers could provide more specific advice.

In general, debugging your current situation will be far easier than rolling off your files to make a partial backup, which then must be collated with your backup from May.

Humor me for a little while and download and run this non-invasive "discovery" utility. "Share" and post its report (already pre-laundered of any personally identifiable information) and let Readers have a look at why you seem to be having so much trouble with this upgrade.

Using etrecheck

.

I've been reading the MacPro (desktop systems) and the MacBook Pro (notebook systems) forums. I have been answering user's queries there, some of which contain frustration at High Sierra problems.

I do not recall disputing that any particular user was having an issue with High Sierra. I have responded to several users that their High Sierra issues may be easier to solve than the very complicated process of reverting to a previous version of MacOS.

MacOS has never allowed you to re-install an older version on top of a newer version. So you must install the older version onto a Blank disk. Exactly how you get a blank disc without destroying all your files in the process can be complicated. There is no single "best answer" that applies to everyone.

Each case should be looked at individually. Here on the Apple Support Communities, the best way to get that individual support is to start a new discussion.

this forum page (one up from here this post is located) has a big blue, "start a discussion" button on it.

Mac OS & System Software

Please start your new discussion, using a title that will attract users you want to help you.

It would be good if you could also include an etrecheck report, so that no one has the play "20 questions" to get the information needed.

Using Etrecheck

.

I have had nothing but problems after installing High Sierra on my 2014 iMac...spinning wheel, freezes, etc. I would like to roll back to Sierra, but it appears my last time machine Backup was in May, I can load all my documents onto a flash drive; will that work? How do I erase my disk?

I have had nothing but problems after installing High Sierra on my 2014 iMac...spinning wheel, freezes, etc. I would like to roll back to Sierra, but it appears my last time machine Backup was in May, I can load all my documents onto a flash drive; will that work? How do I erase my disk?

Still trying to comply with your suggestion...I am now on my PC so I could respond with a thank you...after 32 minutes, EtreCheck page just came up (had to reboot twice)...may be a while downloading, etc.

EtreCheck version: 3.4.6 (460)

Report generated 2017-10-22 10:39:50

Download EtreCheck from https://etrecheck.com

Runtime: 2:17

Performance: Excellent

Click the [Lookup] links for more information from Apple Support Communities.

Click the [Details] links for more information about that line.

Click the [Clean up] link to delete unused files.

Problem: Beachballing

Description:

slow Safari and email

Hardware Information: ⓘ

iMac (27-inch, Late 2013)

[Technical Specifications] - [User Guide] - [Warranty & Service]

iMac - model: iMac14,2

1 3.2 GHz Intel Core i5 (i5-4570) CPU: 4-core

8 GB RAM Upgradeable - [Instructions]

BANK 0/DIMM0

4 GB DDR3 1600 MHz ok

BANK 1/DIMM0

4 GB DDR3 1600 MHz ok

BANK 0/DIMM1

Empty

BANK 1/DIMM1

Empty

Handoff/Airdrop2: supported

Wireless: en1: 802.11 a/b/g/n/ac

Proxy: ProxyAutoConfig

Proxy: ProxyAutoDiscovery

Video Information: ⓘ

NVIDIA GeForce GT 755M - VRAM: 1 GB

iMac 2560 x 1440

Disk Information: ⓘ

APPLE HDD ST1000DM003 disk0: (1 TB) (Rotational)

[Show SMART report]

EFI (disk0s1 - MS-DOS FAT32) <not mounted> [EFI]: 210 MB

Macintosh HD (disk0s2 - Journaled HFS+) / [Startup]: 999.35 GB (890.21 GB free)

(disk0s3) <not mounted> [Recovery]: 650 MB

USB Information: ⓘ

USB30Bus

Apple Inc. BRCM20702 Hub

Apple Inc. Bluetooth USB Host Controller

Apple Inc. FaceTime HD Camera (Built-in)

Thunderbolt Information: ⓘ

Apple Inc. thunderbolt_bus

System Software: ⓘ

macOS High Sierra 10.13 (17A405) - Time since boot: less than an hour

Gatekeeper: ⓘ

Mac App Store and identified developers

Clean up: ⓘ

com.adobe.ARM.[...].plist

/Applications/Adobe Reader.app/Contents/MacOS/Updater/Adobe Reader Updater Helper.app/Contents/MacOS/Adobe Reader Updater Helper semi-auto

Executable not found!

~/Library/LaunchAgents/com.bittorrent.uTorrent.plist

/usr/bin/open -n /Applications/uTorrent.app

Executable not found!

2 orphan files found. [Clean up]

Kernel Extensions: ⓘ

/Library/Extensions

[not loaded] com.Logitech.Control Center.HID Driver (3.9.1 - SDK 10.8) [Lookup]

/System/Library/Extensions

[not loaded] com.Logitech.Unifying.HID Driver (1.3.0 - SDK 10.6) [Lookup]

System Launch Agents: ⓘ

[not loaded] 8 Apple tasks

[loaded] 176 Apple tasks

[running] 104 Apple tasks

System Launch Daemons: ⓘ

[not loaded] 32 Apple tasks

[loaded] 190 Apple tasks

[running] 107 Apple tasks

Launch Agents: ⓘ

[running] com.Logitech.Control Center.Daemon.plist (Logitech Inc. - installed 2015-06-21) [Lookup]

[failed] com.adobe.ARMDCHelper.cc24aef4a1b90ed56a725c38014c95072f92651fb65e1bf9c8e43c37a2 3d420d.plist (Adobe Systems, Inc. - installed 2017-01-10) [Lookup]

[running] com.brother.LOGINserver.plist (? a1772de2 41ad4933 - installed 2017-10-19) [Lookup]

[loaded] com.google.keystone.agent.plist (Google, Inc. - installed 2017-09-27) [Lookup]

[loaded] com.oracle.java.Java-Updater.plist (? d1c27b3f 72ac4dde - installed 2017-10-21) [Lookup]

Launch Daemons: ⓘ

[loaded] com.adobe.ARMDC.Communicator.plist (Adobe Systems, Inc. - installed 2017-01-10) [Lookup]

[loaded] com.adobe.ARMDC.SMJobBlessHelper.plist (Adobe Systems, Inc. - installed 2017-01-10) [Lookup]

[loaded] com.adobe.fpsaud.plist (? 2afb3af7 ed6bc6b2 - installed 2017-10-11) [Lookup]

[not loaded] com.apple.installer.cleanupinstaller.plist (? 1963bf56 0 - installed 2017-10-20)

[loaded] com.google.keystone.daemon.plist (Google, Inc. - installed 2017-10-12) [Lookup]

[loaded] com.malwarebytes.HelperTool.plist (Malwarebytes Corporation - installed 2017-06-03) [Lookup]

[loaded] com.microsoft.autoupdate.helper.plist (Microsoft Corporation - installed 2017-10-16) [Lookup]

[loaded] com.oracle.java.Helper-Tool.plist (Shell Script e3fefdd2 - installed 2017-09-05) [Lookup]

[running] com.sophos.autoupdate.plist (? ab772d11 55004800 - installed 2017-10-13) [Lookup]

[failed] com.sophos.intercheck.plist (? bb3ee39e 5c5a9155 - installed 2017-10-13) [Lookup]

User Launch Agents: ⓘ

[failed] com.adobe.ARM.[...].plist (? 560d19c8 0 - installed 2013-11-20) [Lookup] - /Applications/Adobe Reader.app/Contents/MacOS/Updater/Adobe Reader Updater Helper.app/Contents/MacOS/Adobe Reader Updater Helper: Executable not found!

[loaded] com.bittorrent.uTorrent.plist (? b8be3d86 0 - installed 2015-11-16) [Lookup] - /Applications/uTorrent.app: Executable not found!

[running] com.nchsoftware.expressaccounts.agent.plist (? 26161c8e 135585d1 - installed 2016-02-14) [Lookup]

User Login Items: ⓘ

ControlCenter Application

(/Library/Printers/Brother/Utilities/ControlCenter/ControlCenter.app)

ControlCenter Application

(/Library/Printers/Brother/Utilities/ControlCenter/ControlCenter.app)

Safari Application

(/Applications/Safari.app)

Printer Pro Desktop Application

(/Applications/Printer Pro Desktop.app)

Photo Stream URL SMLoginItem - Hidden (Apple, Inc. - installed 2038-01-18)

(/Applications/iPhoto.app/Contents/Library/LoginItems/PhotoStreamAgent.app)

Internet Plug-ins: ⓘ

o1dbrowserplugin: 5.41.3.0 (installed 2015-12-16) [Lookup]

SlingPlayer: Unknown (installed 2015-06-19) [Lookup]

VLC Plugin: 2.2.1 (installed 2015-04-14) [Lookup]

AdobePDFViewerNPAPI: 17.012.20098 (installed 2017-08-31) [Lookup]

FlashPlayer-10.6: 27.0.0.170 (installed 2017-10-16) [Lookup]

QuickTime Plugin: 7.7.3 (installed 2017-10-02)

Flash Player: 27.0.0.170 (installed 2017-10-16) [Lookup]

PepperFlashPlayer: 27.0.0.170 (installed 2017-10-16) [Lookup]

googletalkbrowserplugin: 5.41.3.0 (installed 2015-12-11) [Lookup]

AdobePDFViewer: 17.012.20098 (installed 2017-08-31) [Lookup]

CouponPrinter-FireFox_v2: 5.0.5 (installed 2014-10-16) [Lookup]

JavaAppletPlugin: Java 8 Update 151 build 12 (installed 2017-10-21) Check version

User internet Plug-ins: ⓘ

DISH Anywhere Player: ECHO.2.29.3 (installed 2017-03-08) [Lookup]

3rd Party Preference Panes: ⓘ

Flash Player (installed 2017-10-11) [Lookup]

Java (installed 2017-10-21) [Lookup]

Time Machine: ⓘ

Skip System Files: NO

Mobile backups: OFF

Auto backup: NO - Auto backup turned off

Volumes being backed up:

Macintosh HD: Disk size: 999.35 GB Disk used: 109.14 GB

Destinations:

Data [Network]

Total size: 2.00 TB

Total number of backups: 139

Oldest backup: 3/10/14, 7:25 PM

Last backup: 10/21/17, 6:29 PM

Size of backup disk: Adequate

Backup size 2.00 TB > (Disk used 109.14 GB X 3)

Top Processes by CPU: ⓘ

20% mdworker

9% mdworker

9% mdworker

7% mdworker

5% WindowServer

Top Processes by Memory: ⓘ

747 MB kernel_task

279 MB mds_stores

83 MB suggestd

70 MB Finder

67 MB Safari

Top Processes by Network Use: ⓘ

Input Output Process name

260 KB 217 KB mDNSResponder

8 KB 9 KB apsd

7 KB 3 KB AddressBookSourceSync

5 KB 3 KB netbiosd

0 B 252 B natpmpd

Top Processes by Energy Use: ⓘ

6.22 mdworker

5.50 WindowServer

4.36 mdworker

4.24 mdworker

Virtual Memory Information: ⓘ

4.43 GB Available RAM

259 MB Free RAM

3.57 GB Used RAM

4.18 GB Cached files

0 B Swap Used

Software installs (last 30 days): ⓘ

Adobe Flash Player: (installed 2017-10-10)

Adobe Pepper Flash Player: (installed 2017-10-10)

Pocket: 1.6.2 (installed 2017-10-13)

Pocket: 1.6.6 (installed 2017-10-13)

Adobe Flash Player: (installed 2017-10-16)

Adobe Pepper Flash Player: (installed 2017-10-16)

Microsoft AutoUpdate: (installed 2017-10-16)

Antivirus Zap: 2.0.1 (installed 2017-10-16)

Malwarebytes for Mac: (installed 2017-10-18)

Malwarebytes for Mac: (installed 2017-10-18)

"Malwarebytes for Mac Uninstaller": (installed 2017-10-18)

"Malwarebytes for Mac Uninstaller": (installed 2017-10-18)

Presto! PageManager 9.35: (installed 2017-10-19)

Brother Software: (installed 2017-10-19)

App Cleaner & Uninstaller: 4.5 (installed 2017-10-21)

Java 8 Update 131: (installed 2017-10-21)

Java 8 Update 151: (installed 2017-10-21)

Java 8 Update 151: (installed 2017-10-21)

Install information may not be complete.

Diagnostics Events (last 3 days for minor events): ⓘ

2017-10-22 10:39:03 Intercheck.app Crash [Open]

Cause: dyld: launch, loading dependent libraries

2017-10-22 10:20:10 Last shutdown cause: 3 - Hard shutdown

2017-10-21 17:47:48 com.apple.WebKit.Networking Crash [Open]

2017-10-20 21:33:17 mobileassetd Crash [Open]

Cause: abort() called

There are bunch of things you can do to speed up that system. the first involves using etrecheck "Clean up" feature to eliminate damaged or incomplete software, so that it stops causing problems. This section:

Clean up: ⓘ

com.adobe.ARM.[...].plist

/Applications/Adobe Reader.app/Contents/MacOS/Updater/Adobe Reader Updater Helper.app/Contents/MacOS/Adobe Reader Updater Helper semi-auto

Executable not found!

~/Library/LaunchAgents/com.bittorrent.uTorrent.plist

/usr/bin/open -n /Applications/uTorrent.app

Executable not found!

2 orphan files found. [Clean up]

if you click on the blue [Clean up] tag, the problem items will be removed for you.

--------

Launch Agents: ⓘ

[running] com.Logitech.Control Center.Daemon.plist (Logitech Inc. - installed 2015-06-21) [Lookup]

[failed] com.adobe.ARMDCHelper.cc24aef4a1b90ed56a725c38014c95072f92651fb65e1bf9c8e43c37a2 3d420d.plist (Adobe Systems, Inc. - installed 2017-01-10) [Lookup]

[running] com.brother.LOGINserver.plist (? a1772de2 41ad4933 - installed 2017-10-19) [Lookup]

[loaded] com.google.keystone.agent.plist (Google, Inc. - installed 2017-09-27) [Lookup]

[loaded] com.oracle.java.Java-Updater.plist (? d1c27b3f 72ac4dde - installed 2017-10-21) [Lookup]

The [failed] adobe item is vestigial, and adobe does not use it any more, but they have not had the decency to remove it after that added it to everybody's system.

Google keystone agent help google collect information about you across all areas. if you resent having your information sold by google, remove this item as well. Located in:

/Library/LaunchAgents

--------

Launch Daemons: ⓘ

[...]

[loaded] com.oracle.java.Helper-Tool.plist (Shell Script e3fefdd2 - installed 2017-09-05) [Lookup]

[running] com.sophos.autoupdate.plist (? ab772d11 55004800 - installed 2017-10-13) [Lookup]

[failed] com.sophos.intercheck.plist (? bb3ee39e 5c5a9155 - installed 2017-10-13) [Lookup]

You appear to be running Sophos AntiVirus. The Mac contains a very good built-in antiVirus, called XProtect, which is updated frequently. Any third-party anti-Virus you add can make your Mac slower, unstable, and crash. I suggest you remove Sophos. it is in this directory:

/Library/LaunchDaemons

--------

User Launch Agents: ⓘ

[failed] com.adobe.ARM.[...].plist (? 560d19c8 0 - installed 2013-11-20) [Lookup] - /Applications/Adobe Reader.app/Contents/MacOS/Updater/Adobe Reader Updater Helper.app/Contents/MacOS/Adobe Reader Updater Helper: Executable not found!

[loaded] com.bittorrent.uTorrent.plist (? b8be3d86 0 - installed 2015-11-16) [Lookup] - /Applications/uTorrent.app: Executable not found!

[running] com.nchsoftware.expressaccounts.agent.plist (? 26161c8e 135585d1 - installed 2016-02-14) [Lookup]

You have a damaged version of uTorrent, a bit Torrent adware that uses your Mac to service requests from others across the internet. It is unclear whether what you have is working, but it should be removed anyway.

also, your accounting software is ALWAYS running, rather than starting up when you ask for it. These items are in:

~/Library/LaunchAgents

where tilde [~] is an active abbreviation for "current user" that is honored by the files system.

-------

(continued in next post)

.

Grant, I to am having problems since installing macOS High Sierrra. Unfortunately apple support will no let me post a new discussion, so I hope you don't mind me asking here. What is happening;

"Having trouble with my Mac (21.5-inch, Late 2012), since installing macOS High Sierra. My computer just closes down/reboots randomly; a black screen appears sometimes when changing software or screens; some Apps are not working properly and crashing; having 'sleep wake failure'..."

Software that is crashing is Layout 2018.

Any assistance will be well received. 🙂

Grant, thank you for your response. Unfortunately, as i previously stated, apple support will not let me post a new discussion. I have pressed the big blue "start a new discussion" button on 5 different occasions, filled out all of the fields, pressed post...and each time it states;

And of course the trouble is compounded when I cant post a discussion of ...'how to post a discussion'.

Anyway, I have completed an EtreCheck as you suggested. Shall I post it here for you to look at??? Not sure if you can help?. But I need help and Im not sure if this support community can help if i need to post a discussion to get help....??

Any suggestions will be well received.

Thanks again

Gary

that happens to me when i get automatically logged out after a timeout.

We need the etrecheckk results to help solve your problem. If you can't start a new discussion for some reason, just post the report here. The issue with the forums is "not-your-problem".

Hi, I have a problem with the High Sierra too. It can't open a simple software called Family Tree Builder, that was ok with the last Sierra version. Now have this problem: "Failed to import cxutils module into Python. See console for errors."

I'm not an expert, don't know how to solve this problem and I really need to use this software to work! I couldn't imagine that High Sierra would give me this problem with a soo simple software...

This is my EtreCheck report. If somebody would help me I will be very thankful.

EtreCheck version: 3.4.6 (460)

Report generated 2017-11-29 17:37:31

Download EtreCheck from https://etrecheck.com

Runtime: 2:12

Performance: Excellent

Click the [Lookup] links for more information from Apple Support Communities.

Click the [Details] links for more information about that line.

Problem: Other problem

Description:

Failed to import cxutils module into Python. See console for errors.

Hardware Information:ⓘ

MacBook Pro (13-inch, 2017, Two Thunderbolt 3 ports)

[Technical Specifications] - [User Guide] - [Warranty & Service]

MacBook Pro - model: MacBookPro14,1

1 2,3 GHz Intel Core i5 (i5-7360U) CPU: 2-core

8 GB RAM Not upgradeable

BANK 0/DIMM0

4 GB LPDDR3 2133 MHz ok

BANK 1/DIMM0

4 GB LPDDR3 2133 MHz ok

Handoff/Airdrop2: supported

Wireless: en0: 802.11 a/b/g/n/ac

Battery: Health = Normal - Cycle count = 15

Video Information:ⓘ

Intel Iris Plus Graphics 640 - VRAM: 1536 MB

Color LCD 2880 x 1800

Disk Information:ⓘ

APPLE SSD AP0128J disk0: (121,33 GB) (Solid State - TRIM: Yes)

(disk0s1) <not mounted> [EFI]: 315 MB

(disk0s2) <not mounted> [APFS Container]: 121.02 GB

USB Information:ⓘ

USB30Bus

USB31Bus

Thunderbolt Information:ⓘ

Apple Inc. thunderbolt_bus

Virtual disks:ⓘ

Macintosh HD (disk1s1 - APFS) / [Startup]: 121.02 GB (65.92 GB free)

Encrypted: Yes (Unlocked)

Physical disk: disk0s2 121.02 GB (65.92 GB free)

(disk1s2) <not mounted> [Preboot]: 121.02 GB

Physical disk: disk0s2 121.02 GB

(disk1s3) <not mounted> [Recovery]: 121.02 GB

Physical disk: disk0s2 121.02 GB

(disk1s4) /private/var/vm [VM]: 121.02 GB

Physical disk: disk0s2 121.02 GB

System Software:ⓘ

macOS High Sierra 10.13.1 (17B48) - Time since boot: about one hour

Gatekeeper:ⓘ

Mac App Store and identified developers

System Launch Agents:ⓘ

[not loaded] 8 Apple tasks

[loaded] 176 Apple tasks

[running] 104 Apple tasks

System Launch Daemons:ⓘ

[not loaded] 38 Apple tasks

[loaded] 181 Apple tasks

[running] 110 Apple tasks

Launch Agents:ⓘ

[running] com.diebold.warsaw.user.plist (? 951b4e8c a29cc25a - installed 2017-06-01) [Lookup]

Launch Daemons:ⓘ

[not loaded] com.apple.installer.cleanupinstaller.plist (? 1963bf56 0 - installed 2017-11-28)

[running] com.diebold.warsaw.plist (? be1144d8 a29cc25a - installed 2017-06-01) [Lookup]

User Launch Agents:ⓘ

[loaded] com.dropbox.DropboxMacUpdate.agent.plist (Dropbox, Inc. - installed 2017-11-04) [Lookup]

[loaded] com.google.keystone.agent.plist (Google, Inc. - installed 2017-11-12) [Lookup]

[loaded] com.myheritage.familytreebuilder.checkupdates.plist (MyHeritage Ltd - installed 2017-11-28) [Lookup]

[running] com.spotify.webhelper.plist (Spotify - installed 2017-11-29) [Lookup]

User Login Items:ⓘ

Backup and Sync Aplicativo

(/Applications/Backup and Sync.app)

iTunesHelper Aplicativo (Apple, Inc. - installed 2017-11-06)

(/Applications/iTunes.app/Contents/MacOS/iTunesHelper.app)

Spotify Aplicativo

(/Applications/Spotify.app)

Dropbox Aplicativo

(/Applications/Dropbox.app)

Internet Plug-ins:ⓘ

QuickTime Plugin: 7.7.3 (installed 2017-10-25)

3rd Party Preference Panes:ⓘ

None

Time Machine:ⓘ

Time Machine not configured!

Top Processes by CPU:ⓘ

8% WindowServer

3% kernel_task

1% launchd

1% hidd

1% ps

Top Processes by Memory:ⓘ

816 MB kernel_task

422 MB com.apple.WebKit.WebContent

382 MB com.apple.WebKit.WebContent

278 MB com.apple.WebKit.WebContent

270 MB com.apple.WebKit.WebContent

Top Processes by Network Use:ⓘ

Input Output Process name

2 MB 147 KB com.apple.WebKit.Networking

114 KB 176 KB Dropbox

41 KB 49 KB Spotify

26 KB 20 KB mDNSResponder

4 KB 5 KB apsd

Top Processes by Energy Use:ⓘ

2.18 com.apple.WebKit.WebContent

1.30 Safari

1.26 WindowServer

1.26 Spotify

0.90 Backup and Sync

Virtual Memory Information:ⓘ

2.47 GB Available RAM

70 MB Free RAM

5.53 GB Used RAM

2.40 GB Cached files

226 MB Swap Used

Software installs (last 30 days):ⓘ

LibreOffice Vanilla: 5.2.3005 (installed 2017-11-05)

Warsaw: 1.12.6.3 (installed 2017-11-13)

LibreOffice Vanilla: 5.4.4003 (installed 2017-11-28)

Install information may not be complete.

The only Bad Actor you hare showing is Warsaw. If your bank does not require it in order to do business with you, I would remove it, as it is VERY invasive. Sometimes banks tell you it is required, but actually just use these add-ons as a moneymaker.

If you are having a [problem with the conversion of one version of one Application,. the obvious solution is to contact the software maker, and ask for their assistance. I would not count on finding someone with your solution here.

I already barked at OldCant for camping on a too-long thread on an unrelated issue. You too will have far better likelihood of results posting a new discussion with a problem-specific title.

Grant,

Thank you very much for your help. I managed to get a discussion post published, with my EtreCheck report attached...not sure why it worked now, but it has, which is great. The discussion is posted as Mac just closes down/reboots randomly

I look forward to any response, hopefully some one can help.

Thanks again for your generous input.

Kind regards

GAry