Unable to load minecraft (just purchased): Problematic frame: C 0x2912d9c0

Purchased the application today, downloaded the new version 1.8.4.
Application exited and reloaded with the following error:

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[18:04:29] [Client thread/INFO]: Setting user: Studio_STEMP
[18:04:30] [Client thread/INFO]: (Session ID is token:ab2d8068af064f7c85706ed8dbeb876b:92805ae222a14730bef46d2db27fa896)
[18:04:34] [Client thread/INFO]: LWJGL Version: 2.9.4
Execution protection violation
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1. A fatal error has been detected by the Java Runtime Environment:
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2. EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x2912d9c0, pid=3708, tid=956
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3. JRE version: Java(TM) SE Runtime Environment (8.0_25-b18) (build 1.8.0_25-b18)
4. Java VM: Java HotSpot(TM) Client VM (25.25-b02 mixed mode windows-x86 )
5. Problematic frame:
6. C 0x2912d9c0
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7. Failed to write core dump. Minidumps are not enabled by default on client versions of Windows
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8. An error report file with more information is saved as:
9. C:\Users\Me\AppData\Roaming\.minecraft\hs_err_pid3708.log
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10. If you would like to submit a bug report, please visit:
11. http://bugreport.sun.com/bugreport/crash.jsp
12. The crash happened outside the Java Virtual Machine in native code.
13. See problematic frame for where to report the bug.
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    Java HotSpot(TM) Client VM warning: Using incremental CMS is deprecated and will likely be removed in a future release

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Similar to MC-43043 I tried already to
1. install newest Java version, deinstall older versions, ensure to have a 32-bit version on an 32-bit system
2. search for new dirver for the graphics device - no one available from AMD / ATI
3. get new drivers for the system from chip.de, istall all drivers including graphics device, restart system.

No changes occured. Error message and log-file are from the latest crash.