Changes are that you have a different display driver or a wrong screen resolution or a wrong setting for aligning the desktop icons.
Aligning the icons:
Right click on the desktop background, select the first option Screen, there you find the options Automatic aligning and Align to raster, try clearing both
Screen resolution:
Again right click on the desktop background, select Screen settings, there you find the screen resolution settings. Select the advised value
Display driver:
Press Windows Key and X, select Device Control, open Screen Adapters, can you tell me which adapter it has?