Search notes:

Registry: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Power

The value HibernateEnabled determines if hibernation is enabled: 
reg query HKLM\SYSTEM\CurrentControlSet\Control\Power /v HibernateEnabled

See also

The subkey PowerSettings
powercfg.exe

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/...', 1759398080, '216.73.216.42', 'Mozilla/5.0 App...', NULL) #2 /home/httpd/vhosts/renenyffenegger.ch/httpsdocs/notes/Windows/registry/tree/HKEY_LOCAL_MACHINE/System/CurrentControlSet/Control/Power/index(40): insert_webrequest() #3 {main} thrown in /home/httpd/vhosts/renenyffenegger.ch/php/web-request-database.php on line 78