Registry key didn't work and I cant install SQL Server - sql-server

I tried the registry keys and also tried downloading the express and the developer edition but this log problem is not being resolved. Help please. What else should I do now?
I tried the key but it didn't work.

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Why does SQL Server Install Error 2019 Express fail with MSI instance already install

I need help with SQL install. It keeps failing with error code below.
Specified instance {A60B3D8E-5311-4BF1-AF7A-D1AC15F9152E} via transforms :InstID01.mst;:InstName01.mst is already installed. MSI INSTANCE requires a new instance that is not installed.
This was already asked in this forum but the solution doesn't work. Somehow there is an old remnants of the program on my system. I looked for the Microsoft clean up tool and it is no longer available. How else can I fix this? Is there a way I can remove this in the registry and if so which folder?
Thanks

Problem with installing AdventureWorks on SQL Server 2016

I have encountered a problem with importing a backup of AdventureWorksDW2017. I tried to install the backup of it, following this guide: https://learn.microsoft.com/en-us/sql/samples/adventureworks-install-configure?view=sql-server-ver15, however most of the options listed in there, like Tasks, Restore Database, etc. seem to be missing in my installation.
Currently, I am using SQL Server 2016 and SQL Server Management Studio 18. I tried reinstalling it, hoping that the reason could be a corrupted installation, but it didn't help.
Thanks in advance

NuGet - Package Manager Not Connecting to Remote Server

In Visual Studio 2012 I try clicking the "Manage NuGet Packages..." option on a project and when the package manager opens it tries to load for a while before giving me "Unable to connect to remote server".
There is a similar question here: Visual Studio/C#: Nuget Unable to connect to remote server
but it doesn't appear to have any answer that I can see.
I have tried updating Visual Studio 2012 as well as updating NuGet (the "Extensions and Updates" option still works just fine) and then restarting but no such luck. It was working earlier, but I have since created a new database connection using the Database Explorer. I don't know if that would affect anything but that's the only change I could think of that I've made since it was working.
Please let me know if you need any other information.
Edit: Okay so apparently this fixes itself after a while. But only AFTER you've submitted a question about it... sigh. I'd still like to know what the issue is if anyone has any idea, but at least it's working now.
While you could certainly access the cached packages on your own machine, if you're working in a team you could install ProGet as an intermediary NuGet server, and it will automatically cache the remote packages on your network for your team.

SQL Server 2008 R2 Installation, MOF Syntax Error

I have been trying to install SQL Server 2008 R2 and I get the following error
MOF Syntax Error.
And it happends when it gets to the "provider_Cpu32_WMI something.."
Does anyone know how I can fix this, I have tried the whole day with no luck..
Things I have tried,
Manually uninstalling SQL Server 2008 R2 by using Add/Remove Programs, deleting folders, deleting registry keys, etc....
I checked on google and many people had have problems with this... but I have tried it all with no luck.
Thank you in advance
Have you tried a slipstream install that has the CUs? I bet all the money in my pockets (25 cents mind you) that this will resolve the issue.

sql server 2008 express setup problem

I previously had sql server 2005 express and uninstalled it.. I also uninstalled any vs related programs and installed visual web developer 2008 express edition with SP1. now that I am trying to install sql server 2008, I am seing error messages like no other and leave that alone without any suggestions..
the latest one which I could not come to a proper solution on the internet is;
consistency validation for sql server registry keys error which suggests
"The SQL Server registry keys from a prior installation cannot be modified. To continue, see SQL Server Setup documentation about how to fix registry keys.
as you might have guessed nothing so informative in the documentation... Also, when I try to delete any sql server related registry key, it does not let me. (yes I stopped all the related services..)
anybody here that can be of any assistance?
You can try with this procedure :
Stop all SQL Server Services
Remove all SQL Server Services with sc delete servicename
Control Panel - Add/Remove Programs - Select and Remove all Microsoft
SQL Server programs
Open regedit and remove all SQL Server folders in this registry key: HKEY_LOCAL_MACHINE/ SOFTWARE/MICROSOFT
Remove SQL Server folders from Program Files directory
Reboot
This procedure should resolve the issue, i've resolved with this procedure ...
i found this to happen if you had an add-in for SSMS installed which hasn't been uninstalled before ssms was uninstalled.
You may need to change the permissions on the relevant registry keys using regedt32 first so that you can then delete the keys via normal regedit
Well actually, I believe, one should not go through such mess in order to accomplish a simple task like this. In the end, I ended up formatting my PC and re-installing SQL Server.
I know this is an old question and you already said in comments that you reformatted the machine. However, I just ran into this exact message and wanted to share my solution because it was so easy, but the error message didn't help at all!
I was using the wrong installation package. I had a 64-bit Intel Windows 7 computer and I was trying to use the x86 version of SQL Server 2008. Once I found the correct version (x64) I did not get this error and the install proceeded normally.
I had a similar problem because I still had some remnants of SQL Server 2005 left - not the services, it was some parts of the IDE. Anyway, to resolve it I used the option to upgrade (sorry, I can't remember the exact option just now). After running the upgrade portion, which took a few minutes, I could then run the full install with no problems.

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