I have the Npp Snippets installed OK on my Notepad++ 7.6 (32 bits)
My structure is:
The directory:
“**C:\Users\YOUR_USER\AppData\Local\Notepad++\plugins\NppSnippets**”
has the file:
NppSnippets.dll
The directory:
“**C:\Users\YOUR_USER\AppData\Local\Notepad++\plugins\NppSnippets\NppSnippets**”
has the files:
Languages.sql
NppSnippets.sql
Template.sqlite
Backup your files,
specially this last 3 (Languages.sql, NppSnippets.sql and Template.sqlite) before puting into the second directory.
PS: yes, the second directory has NppSnippets twice (first level has the DLL, second level has the config files)