In reading the other tweaks for "automatically" deleting the prefetch files (which, by the way, decreases your startup time 

drastically) and finding out that they were NOT AUTOMATIC at all, I was forced to find a truly automatic way to delete these 

files. The other tweaks weren't automatic because you had to run a file every time you wanted to do this.  Also, running it 

once won't help because every time you run an app on your computer, it puts more files into the prefetch folder, so we

 needed something to delete the files when shutting down or restarting.  Well, here it is:



 



1.  create a new text file in the C:\  directory



2.  type "del c:\windows\prefetch\*.* /q" (without he quotes)



3.  save the file as "prefetch.bat"



4.  From the Start menu, select "Run:



5.  Type in "gpedit.msc"



6.  In the window that appears, under the "computer configuration" heading, expand "windows settings"



7.  under "windows settings", select "Scripts (Startup/Shutdown)"



8.  double click "shutdown" from the right window



9.  click "add"



10.  click browse and locate your "prefetch.bat" file



11.  click "open"



12.  click "OK"



13.  click apply or OK to finalize this process.



Now you are done.  every time you shut down or restart your computer, it will run your shutdown script to delete the 

prefetch files.