How JustAnswer Works:

  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.

Ask James Your Own Question

James, Sr. Computer Support Expert
Category: Computer
Satisfied Customers: 15908
Experience:  20 years of experience building, fixing and servicing PCs and operating systems.
Type Your Computer Question Here...
James is online now
A new question is answered every 9 seconds

how do i reinstall my prefetch files in windows

Resolved Question:

how do i reinstall my prefetch files in windows
Submitted: 6 years ago.
Category: Computer
Expert:  James replied 6 years ago.
Go into C:\windows\prefetch

Delete all the files that end with .pf

Make sure you enable "View Hidden/System files" in View-->Options in Windows Explorer before you do this, so you can see those files. They will be re-created on the next reboot.

Customer: replied 6 years ago.

Not sure how to open view hidden system files in view options in windows explorer.

give me blow by blow instructions please

Expert:  James replied 6 years ago.

Hold down the Windows key, and hit E to open Windows Explorer.
Click Tools
Click Folder Options
Click View
Move the selector dot to "Show hidden files, folders, and drives".
Click in the box that says "Hide extensions for known file types".
Click ok.

Then go to c:\windows\prefetch, highlight all the files that have a .pf extension.

Customer: replied 6 years ago.

i know this is stupid but where is the windows key. I keep opening internet properties or internet options


Expert:  James replied 6 years ago.
Click Start, type "Explorer" in the box.
Then click Windows Explorer in the list.

Customer: replied 6 years ago.
i am about to give up when I click on windows explorer it opens the library files documents music pictures video etc. Windows 7 is hard to use since I have always had windows xp. the only file i found in documents is explorer.exe. Where does windows 7 hide their windows explorer files?
Expert:  James replied 6 years ago.
Ok, let's try this:

Clicl Start, and type


Then hit enter. This will open Explorer, and you will see Tools on the menu.

James and 5 other Computer Specialists are ready to help you