reset your preferences -
adobe media encoder: https://forums.adobe.com/thread/1713540
after effects: http://helpx.adobe.com/after-effects/using/preferences.html
muse (mac): https://forums.adobe.com/thread/1246022?tstart=0
photoshop elements: https://helpx.adobe.com/photoshop-elements/kb/preference-file-locations-photoshop-elements .html, http://www.photokaboom.com/photography/learn/Photoshop_Elements/troubleshooting/1_delete_p references_file.htm
if that fails, uninstall, clean (http://www.adobe.com/support/contact/cscleanertool.html) and reinstall
Honesty I'd say it's probably your PC and not Flash. Probably not what you want to hear but it's likely the case, unless it USED to work fine and now suddenly does not. I read the specs on your laptop and it has integrated graphics meaning it does not have a dedicated graphics card but rather relies on the hard drive to provide memory to view images. These types of computers are historically not good for art and especially for the calculations required to do vector work. I've owned a lot of tablets and laptops in my time and am a professional animator who uses flash daily both at home and at work, and there are really only a very few that will work with Flash and while Lenovo makes fine PCs even they can't make integrated graphics calculate vectors fast enough to draw.