ferramenta dissolver

If @AxelMatt ’s recommendation should not have resolved the issue please describe what you have done for all-purpose trouble-shooting so far. 
Restoring Preferences after making sure all customized presets like Actions, Patterns, Brushes etc. have been saved might be a good starting point:
https://helpx.adobe.com/photoshop/using/preferences.html
https://helpx.adobe.com/photoshop/kb/basic-trouble-shooting-steps.html
https://helpx.adobe.com/photoshop/kb/troubleshoot-gpu-graphics-card.html

Check your hard drive with the appropriate diagnosis tools of Windows or the buildin tools of the board.

Especially check the scratch disk.

https://helpx.adobe.com/photoshop/using/scratch-disks-preferences.html

https://helpx.adobe.com/photoshop/kb/troubleshoot-scratch-disk-is-full.html