Windows 7

====== Remove Windows 10 Update ======

  * Uninstall KB3035583
  * Hide Update after restart in windows update
  * Delete the installation files
    * Use system cleanup of your system partition (Temporary files, Windows Update files)

Other updates which probably also should be uninstalled and hidden: KB2952664, KB2976978

====== Change size of hiberfil.sys ======

File which is used for hibernation mode

Default is 75 % of RAM which is ~ 24 GB if you have 32 GB RAM.

http://www.sevenforums.com/tutorials/220051-hibernate-change-size-hiberfil-sys-file.html

====== Change size of pagefile.sys ======

File which is used for memory swapping.

Default is 100 % of RAM.

https://askleo.com/what_is_pagefilesys_and_can_i_move_it/