The game will not work on either laptops we have Minecraft installed - it has worked in the past

[17:40:18] [Client thread/INFO]: Setting user: CandGrule
[17:40:18] [Client thread/INFO]: (Session ID is token:8f4af4c321624547b43167b82d6968fa:3fff2d182c144812aabf08f93a9ed73c)
[17:40:21] [Client thread/INFO]: LWJGL Version: 2.9.1
[17:40:21] [Client thread/INFO]: Reloading ResourceManager: Default
[17:40:23] [Sound Library Loader/INFO]: Starting up SoundSystem...
[17:40:23] [Thread-6/INFO]: Initializing LWJGL OpenAL
[17:40:23] [Thread-6/INFO]: (The LWJGL binding of OpenAL.  For more information, see http://www.lwjgl.org)
[17:40:23] [Thread-6/INFO]: OpenAL initialized.
[17:40:24] [Sound Library Loader/INFO]: Sound engine started
[17:40:26] [Client thread/INFO]: Created: 512x512 textures-atlas
#
# A fatal error has been detected by the Java Runtime Environment:
#
#  EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x277f3e88, pid=1904, tid=4056
#
# JRE version: Java(TM) SE Runtime Environment (8.0_25-b18) (build 1.8.0_25-b18)
# Java VM: Java HotSpot(TM) Client VM (25.25-b02 mixed mode windows-x86 )
# Problematic frame:
# C  [ig4dev32.dll+0x3e88]
#
# Failed to write core dump. Minidumps are not enabled by default on client versions of Windows
#
# An error report file with more information is saved as:
# C:\Users\User\AppData\Roaming\.minecraft\hs_err_pid1904.log
#
# If you would like to submit a bug report, please visit:
#   http://bugreport.sun.com/bugreport/crash.jsp
# The crash happened outside the Java Virtual Machine in native code.
# See problematic frame for where to report the bug.
#
AL lib: (EE) alc_cleanup: 1 device not closed
Java HotSpot(TM) Client VM warning: Using incremental CMS is deprecated and will likely be removed in a future release