Installing this solved lots of my problems :

https://www.microsoft.com/en-us/download/details.aspx?id=53840
topic : https://www.steinberg.net/forums/viewtopic.php?f=250&t=107823

Other useful solutions :
https://www.steinberg.net/forums/viewtopic.php?t=108093
https://www.steinberg.net/forums/viewtopic.php?t=109526
https://www.steinberg.net/forums/viewtopic.php?t=107158

https://helpcenter.steinberg.de/hc/...oting-for-Cubase-Nuendo-and-Sequel-on-Windows
https://www.steinberg.net/nc/en/sup...w_details/kb_show/optimizing-windows-for-daws
https://helpcenter.steinberg.de/hc/en-us/articles/207348390-Plug-in-Sentinel-for-Cubase-9
https://helpcenter.steinberg.de/hc/en-us/articles/206529924--Win-WaveLab-crashes-during-startup

Other Microsoft Updates:
Edited :
new RunTime Pack ( You can just install this and ignore others! )
http://yon.ir/LZEBL
password : http://peeplink.in/0a0be922ffc4

(original: https://support.microsoft.com/en-us/help/2977003/the-latest-supported-visual-c-downloads)

C Update Pack:
https://support.microsoft.com/en-us/help/2999226/update-for-universal-c-runtime-in-windows

 

Last edited: Nov 23, 2018

I'm using Studio One. I couldn't play video files and I thought my old graphic card is the reason. I also tryed it on Reaper too and the result was the same. I have just tried your first link. Microsoft Visual C++ 2015 Redistributable Update 3, and now there's no video playback problem on S1. Absolutely no problem. Definitely great. Undoubtedly brilliant. Precisely fabulous. Surely wonderful. Shortly, I'm happy very much for sharing.

 

You're welcome I'm happy that this helped you

 

Hi , C++ Update Pack wants rar password from www.yon.ir/o4wY2 couldnt open it , thanks by the way

 

Password because of security is written here : http://peeplink.in/3c46a02ac264. (peeplink pass:Audiosex)

 

It would be really great whenever someone talks about instabilities and solutions to mention the version of Windows he/she is using. Thanks!

 

I use 7 but if you search this forum or sister site or google or my mentioned Strindberg forums links other people has also this problems

 

Thanks zizi, I worked so hard to make an optimization for win 7. Cubase is working great now after installing your solitions.

 

Edit : new runtime pack has been added

 

Updated again.