Do the following please.
1. Open Internet Explorer, click the Safety tab on the lower menu bar or the Tools tab on the main menu bar depending on which edition you are using and click on Delete Browsing history.
Provising you know any passwords you use for email or other sites (this is not connected with your passowrd to sign on Windows) check all boxes, but UNCHECK the very top box above the bar.
If you are using Mozilla Firefox see this
If you use both - do both.
2. Run a diskcleanup
3. Run this please.
When you run this close all open windows to the desktop.
The program will run and when it completes n it will tell you so and indicate if restart is necessary.
Whilst running your icons will disappear this is normal.
If you are in any way susceptible to flashing graphics, the small graphic in the top right hand corner does flash.
4. See how it is now please.
5. If you can see Local Settings, Temp then you must have Show Hidden files and folders checked in Tools tab, Folder options, View - on My Computer window.