Can anyone please tell me whether there are any references to "SQL" (or to sql server) in the Windows 10 operating system - files or registry? I have made an irredeemable mess of trying to correct an installation of SQL Server Express 2016 which now needs to be removed, totally, and manually. I don't know if it is safe to merely remove all files and directories and registry entries with "SQL" in the their names. (Add/Remove won't work and the update suggested by another forum led me into this mess, so please don't suggest either of these!)
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