adobe flash plug in keeps crashing

i have downloaded adobe flash player several times but the plug in keeps crashing,i send report as requested but no results.because of this,most of my videos that i try to download are not visible.

Tech Support Guy System Info Utility version 1.0.0.2
OS Version: Microsoft Windows 8, 64 bit
Processor: Intel(R) Pentium(R) CPU B960 @ 2.20GHz, Intel64 Family 6 Model 42 Stepping 7
Processor Count: 2
RAM: 3985 Mb
Graphics Card: Microsoft Basic Render Driver, 14 Mb
Hard Drives: C: Total - 452112 MB, Free - 406123 MB; D: Total - 24037 MB, Free - 2900 MB;
Motherboard: Hewlett-Packard, 1854
Antivirus: avast! Antivirus, Updated and Enabled