Open your browser (Internet explorer for example)
In the address bar type google.com
Press enter
When the Google site comes up, in the search box in the centre of the screen
type 0x7c93426d
Press enter

Then click the link under the first link which is
Windows Explorer keeps closing.

Scroll down to the third message and this will tell you what to try first.

If that does not work there are 407 other answers you could look at.