if a program hang and stop responding -can that cause proplem in windows also ?

[sosolola]

or it will only affect the program ?
for example today cyberlink powerdvd 15 hang and stopped responding so I forced close it
in event viewer there is an error program hang

 

[Lutfij]

Most often when a program does freeze and then crashes on its own it was either due to the OS, the program or a certain environment of both software and hardware. In the latter case the issue may be as bad as a machine that has hung or worse gives off a BSOD instantaneously while in the former the program itself may have crashed and any data you were working with on in that particular program was lost.

If it doesn't cause a BSOD then its a good thing but if you have programs that die while you work - well it's going to get frustrating if you're shooting for productivity. Event viewer displays programs that may be an issue to your Windows environment.