Screen Issues

While watching a video for a long time, I suddenly experience a system blackout and it's been going for a month now, what can I do about this?

After a through clening I seem to have lost the screen saver prompt. The program is there and working - but it does not turn on when directed. How do I rescue the code that seems to be lost?

When I turn on my pc,
after windows logo a blank screen comes for about 3-4 min.
then a "please wait" loop comes which lasts for about 1 min.

My PC: It's a prebuilt "ACER Veriton series."

Добрый день. Полностью пропала регулировка яркости после обслуживания через эту программу. Сочитание клавиш FN + яркость не работают. Ползунков нигде нет.

recently when I start my computer the display show a list of system information on the right side of screen. It does not appear on subeuent pages. I can not get rid of it or find the dourse

Start buttons etc., at bottom of page are often off the page.
taskbar is at top of screen
reducing page size ratio is no help
Please help.

Quiero saber porque con windows 10 no puedo regular la intensidad de luz de la pantalla. Quiero aumentar o disminuir su intensidad de brillo y no puedo.

Hello, i have problem, after install bootsped 11, i can't control luminosity because disappeared in central windows 10.
Best regards