Sorry to hear you are having issues. Need to know more.
1) Windows 10 version, please use Winver.exe for full Windows version numbers.
2) Windowblinds version.
3) Is the issue only happen in curtain style or all style? If curtain style please list down the style that have issue.
4) Need to know your monitor/s scaling applied. 100%,125%, or more
Stardock Community Assistant.