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 Delete  Computer\HKEY_CLASSES_ROOT\*\shell\koofr   Computer\HKEY_CLASSES_ROOT\Directory\shell\koofr

 Add “GRUB_RECORDFAIL_TIMEOUT=0” in /etc/default/grub Then update GRUB by running sudo update-grub Credit: https://techz.io/disable-grub-boot-menu

Edit /etc/systemd/system.conf Uncomment and change the value at line DefaultTimeoutStopSec=90s Reboot for the change to take effect (it will not take effect yet after editing the file before reboot).

Delete HKEY_CLASSES_ROOT\*\shell\ShareWithSkype  Credit: https://www.technipages.com/disable-share-with-skype-from-context-menu

https://drive.google.com/file/d/1rpGpvUe40iHsmC06zbNvU6T2YKt4Ug6R/view?usp=sharing

 Delete Computer\HKEY_CLASSES_ROOT\AllFilesystemObjects\shellex\ContextMenuHandlers\Syncplicity

 db.the_collection_name.distinct('the_field_name')   To get count of distinct value var collection = "the_collection_name"; var field = "the_field_name"; db[collection].distinct(field).forEach(     function(value) {         print(field + ", " + value + ": " + db[collection].count({[field]: value}))     } )