Avid Pro Audio Community

Avid Pro Audio Community

How to Join & Post  •  Community Terms of Use  •  Help Us Help You

Knowledge Base Search  •  Community Search  •  Learn & Support


Avid Home Page

Go Back   Avid Pro Audio Community > Pro Tools Software > Licensing & Accounts

Reply
 
Thread Tools Search this Thread Display Modes
  #1  
Old 08-30-2020, 08:34 AM
Gamefreak Gamefreak is offline
Member
 
Join Date: Aug 2020
Location: Ahnatal/Germany
Posts: 4
Default Downgrading PT 2020.4 to 18.4

Hope it's the right place for this post;
In 2016 I bought PT 12.5 (Perpetual Product) with a Standard Support Plan which expired 08-11-20. Accidetally I've upgradedmy PT 12 to 2020.4, but the last version covered by my Support Plan was 18.4.
Immediately I have bought a new Annual Subscription, but it was already too late: "PT cannot be launched ("Subscription expired...") and the new subscription cannot be downloaded.
I tried to "overwrite" the PT 2020.4-version on my pc with PT 18.4 which didn't work, and neither did overwriting it with PT 12.5.
Every time the installation was interrupted with the message "Error 2753: the file "mmerefresh.exe is not marked for installation".
Do I have to completely remove PT 2020.4 from my pc and reinstall my first Version (PT 12.5) or is there any other way?
Thank you

My System: Win 8.1. Pro, Intel i7-4790, 3,6 GHz, 32 GB Ram, Samsung SSD; Steinberg UR 242
Reply With Quote
  #2  
Old 08-30-2020, 08:37 AM
JFreak's Avatar
JFreak JFreak is offline
Moderator
 
Join Date: Jan 2003
Location: Tampere, Finland
Posts: 20,196
Default Re: Downgrading PT 2020.4 to 18.4

Hi, welcome to the community.

Compatibility info here.
__________________
Janne
What we do in life, echoes in eternity.
Reply With Quote
  #3  
Old 08-30-2020, 08:42 AM
Gamefreak Gamefreak is offline
Member
 
Join Date: Aug 2020
Location: Ahnatal/Germany
Posts: 4
Default Re: Downgrading PT 2020.4 to 18.4

Okay, I've seen: wrong OS for the PT-Version...
But is there any way back to PT 12.5 or 18.4?
Reply With Quote
  #4  
Old 08-30-2020, 08:43 AM
JFreak's Avatar
JFreak JFreak is offline
Moderator
 
Join Date: Jan 2003
Location: Tampere, Finland
Posts: 20,196
Default Re: Downgrading PT 2020.4 to 18.4

Just install the version you want to be using. Your license has a RELEASE LIMIT date that determines the latest version you can use. Earlier are okay. If you have problems it is very much recommended to do a clean install of OS and start over.
__________________
Janne
What we do in life, echoes in eternity.
Reply With Quote
  #5  
Old 08-30-2020, 07:27 PM
64GTOBOY's Avatar
64GTOBOY 64GTOBOY is offline
Member
 
Join Date: Dec 2015
Location: Houston
Posts: 748
Default Re: Downgrading PT 2020.4 to 18.4

To answer your question, yes, a clean install will probably be required unless you can do a system restore and or have a back up/clone of your system drive
__________________
Dell XPS 8900 i7-6700K CPU @ 4.00GHz 32 Gig Memory:Seagate 2 TB,1TB,4TB,500gb EVO OS Windows 7 Ultimate
PT 2019.6 Native through A&H Qu-32
Reply With Quote
  #6  
Old 08-31-2020, 02:50 AM
Gamefreak Gamefreak is offline
Member
 
Join Date: Aug 2020
Location: Ahnatal/Germany
Posts: 4
Default Re: Downgrading PT 2020.4 to 18.4

Thank you for your quick replies
Unfortunately I have no backup of my system; I would not like to change my OS because it ran stable for four years.
Now I will run the uninstaller and remove Pro Tools from my system and try a clean installation of PT 18.4 which is the last version I am allowed to load.
Reply With Quote
  #7  
Old 08-31-2020, 02:54 AM
JFreak's Avatar
JFreak JFreak is offline
Moderator
 
Join Date: Jan 2003
Location: Tampere, Finland
Posts: 20,196
Default Re: Downgrading PT 2020.4 to 18.4

Clean install means starting over with OS


Sent from my iPhone using Tapatalk
__________________
Janne
What we do in life, echoes in eternity.
Reply With Quote
  #8  
Old 08-31-2020, 04:16 AM
Gamefreak Gamefreak is offline
Member
 
Join Date: Aug 2020
Location: Ahnatal/Germany
Posts: 4
Default Re: Downgrading PT 2020.4 to 18.4

It is done!!

I've deinstalled the current PT-Version, then reinstalled PT 12.5 (didn't work...) and then upgraded to PT 18.4
...it works!

Thank you for your patience
Reply With Quote
  #9  
Old 08-31-2020, 04:17 AM
JFreak's Avatar
JFreak JFreak is offline
Moderator
 
Join Date: Jan 2003
Location: Tampere, Finland
Posts: 20,196
Default Re: Downgrading PT 2020.4 to 18.4

Good to know you got it going


Sent from my iPhone using Tapatalk
__________________
Janne
What we do in life, echoes in eternity.
Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Pro Tools 2020.5/2020.3 Compatibility with Catalina 10.15.4? derrickhou macOS 4 07-26-2020 07:46 AM
Avid Control App Rollback (2020.5 to 2020.3) budster Avid S1, S3, Dock and Control 2 06-09-2020 11:01 AM
Pro Tools (2020.3) on MacBook Air 2020 compatibility pellekuipers Pro Tools 2020 1 04-04-2020 08:01 AM
New Avid Link 2020.1 - launched today 1/16/2020 marianna Licensing & Accounts 8 01-16-2020 11:43 PM


All times are GMT -7. The time now is 04:19 PM.


Powered by: vBulletin, Copyright ©2000 - 2008, Jelsoft Enterprises Limited. Forum Hosted By: URLJet.com