Search notes:

Registry: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion

This key stores information about the system such as Product Name (for example Windows 10 Pro), CurrentBuildNumber …
Some sub keys are

PathName and SystemRoot

At least on the computer I am currently working on, the values of PathName and SystemRoot are C:\Windows.

ProductId

The value of the product id.

See also

There is also a HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion

Index

Fatal error: Uncaught PDOException: SQLSTATE[HY000]: General error: 8 attempt to write a readonly database in /home/httpd/vhosts/renenyffenegger.ch/php/web-request-database.php:78 Stack trace: #0 /home/httpd/vhosts/renenyffenegger.ch/php/web-request-database.php(78): PDOStatement->execute(Array) #1 /home/httpd/vhosts/renenyffenegger.ch/php/web-request-database.php(30): insert_webrequest_('/notes/Windows/...', 1737520650, '18.226.150.171', 'Mozilla/5.0 App...', NULL) #2 /home/httpd/vhosts/renenyffenegger.ch/httpsdocs/notes/Windows/registry/tree/HKEY_LOCAL_MACHINE/Software/Microsoft/Windows-NT/CurrentVersion/index(68): insert_webrequest() #3 {main} thrown in /home/httpd/vhosts/renenyffenegger.ch/php/web-request-database.php on line 78