Random Crash on 1.8 and Out of date windows on 1.8.1 pre release?

What has happened in this is i really don't know i have my java up to date but i can't launch my first 1.8 due to natives being a poo and the other one is my minidumps wont load

1. A fatal error has been detected by the Java Runtime Environment:
   #

2. EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x000000000e04a905, pid=8272, tid=6316
   #

3. JRE version: Java(TM) SE Runtime Environment (7.0_55-b13) (build 1.7.0_55-b13)

4. Java VM: Java HotSpot(TM) 64-Bit Server VM (24.55-b03 mixed mode windows-amd64 compressed oops)

5. Problematic frame:

6. C [ig7icd64.dll+0x47a905]
   #

7. Failed to write core dump. Minidumps are not enabled by default on client versions of Windows
   #

8. An error report file with more information is saved as:

9. C:\Users\aaron\AppData\Roaming\.minecraft\hs_err_pid8272.log

the second one i can't get