This message was posted on behalf of Intel Corporation
Denis3K11, Thank you very much for joining the Intel® Graphics communities.
In order to better assist you:
What is the model of motherboard, processor or laptop?
Which Windows version are you using?
Which is the version of the graphics driver currently installed?
You mentioned the system was working properly a month ago, do you remember the graphics driver version that was installed back then?
Any further questions, please let me know.