Thanks. Those I've tried. I feel like it's related to Windows 11 as I never had trouble with SQL uninstalls in Windows 10. Mike Internal Use - Confidential -----Original Message----- From: Adrian Klaver <adrian.klaver@xxxxxxxxxxx> Sent: Friday, February 10, 2023 10:08 AM To: Lawrence, Mike (DTST) <Mike.Lawrence@xxxxxxxx>; pgsql-general@xxxxxxxxxxxxxxxxxxxx Subject: Re: PostgreSQL 13.9.3 Uninstall fails with "Unable to initialize any installation mode" [EXTERNAL EMAIL] On 2/10/23 9:56 AM, Lawrence, Mike (DTST) wrote: > Hi Adrian, > I downloaded "postgresql-13.9-3-windows-x64.exe" from https://urldefense.com/v3/__https://www.enterprisedb.com/downloads/postgres-postgresql-downloads__;!!LpKI!jb4U2mDde4K_Qa_r1Oc629RdMzkH-_iooRSGkbQW6D9LqqqF4czhLP-VijlRczhX3hHMwKLZwGWcz0VtVwbN0blchw$ [enterprisedb[.]com]. > > I went to Windows 11 Apps > Apps & Features, found PostgreSQL 13 and used the Uninstall option from there. I also tried executing "C:\Program Files\PostgreSQL\13\uninstall-postgresql.exe" directly with and without Compatibility mode and had the same problem. I am only an occasional Windows user and have not really used Windows 11, so I don't have a way to test on my end. I did find: https://urldefense.com/v3/__https://support.microsoft.com/en-us/windows/uninstall-or-remove-apps-and-programs-in-windows-4b55f974-2cc6-2d2b-d092-5905080eaf98__;!!LpKI!jb4U2mDde4K_Qa_r1Oc629RdMzkH-_iooRSGkbQW6D9LqqqF4czhLP-VijlRczhX3hHMwKLZwGWcz0VtVwbgFmpLwA$ [support[.]microsoft[.]com] " Uninstall in Settings Select Start > Settings > Apps > Apps & features . Find the app you want to remove, select More > Uninstall. Note: Some apps can't be uninstalled from the Settings app right now. For help uninstalling these apps, follow the instructions to uninstall from Control Panel. Uninstall from Control Panel In search on the taskbar, enter Control Panel and select it from the results. Select Programs > Programs and Features. Press and hold (or right-click) on the program you want to remove and select Uninstall or Uninstall/Change. Then follow the directions on the screen. " > > > Mike > > > Internal Use - Confidential > > -----Original Message----- > From: Adrian Klaver <adrian.klaver@xxxxxxxxxxx> > Sent: Friday, February 10, 2023 8:42 AM > To: Lawrence, Mike (DTST) <Mike.Lawrence@xxxxxxxx>; pgsql-general@xxxxxxxxxxxxxxxxxxxx > Subject: Re: PostgreSQL 13.9.3 Uninstall fails with "Unable to initialize any installation mode" > > > [EXTERNAL EMAIL] > > On 2/10/23 08:28, Lawrence, Mike (DTST) wrote: >> Dell Customer Communication - Confidential >> >> >> I recently installed PostgreSQL 13.9.3 on a newly build Window 11 22H1 >> system. When I attempt to uninstall, and I’ve tried numerous times, I >> receive the error "Unable to initialize any installation mode". > > Where did you get the package you installed from? > > What where the steps you took to uninstall? > >> >> *Mike Lawrence* >> Consultant Product Manager, Product Management *Dell Technologies*|DT >> Services Technologies >> >> Mike.Lawrence@xxxxxxxx <mailto:Mike.Lawrence@xxxxxxxx> >> >> Home Office: Moorpark, CA >> >> /Delivering great customer experiences powered by value-added insights >> through technology./ >> > > -- > Adrian Klaver > adrian.klaver@xxxxxxxxxxx > -- Adrian Klaver adrian.klaver@xxxxxxxxxxx