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How To *Not* Speed Up Windows 7 Boot Time

Written by: Oliver Krautscheid - Published: Sunday, October 11th, 2009

Are you looking for a way to decrease the boot up time of Windows 7? There are many solutions out there. A very common one is to disable the Windows Prefetcher and the Windows Superfetch feature. This does not work at all and won’t make your system faster. We still want to take a look at it and find out a bit more about it.

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Sidenote: Make sure to backup your registry before you edit any registry settings.

Table Of Contents

How to disable the Windows Prefetcher

First of all open up the registry (Click on Start and enter “regedit”, click on regedit.exe), confirm the UAC warning and locate the following registry file:

HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\SessionManager\MemoryManagement\PrefetchParameters\
Entry: “Enable Superfetch”

Speed Up Windows 7 Boot Time

Double-click on “Enable Superfetch” and change the value from “3″ to “2″. Do the same for “Enable Prefetcher“.

About Windows Prefetcher

The Windows Prefetcher is a background service that can preloads applications into your memory.

0 – no prefetch
1 – prefetch applications only
2 – prefetch boot only
3 – prefetch both applications & boot (default)

This registry hack was pretty popular back in Windows XP. Back then people set it to “5″, although any setting above 3 is not even document.

About Superfetch

Windows Superfetch is an improved feature of Windows Vista and Windows 7 that monitors your behaviour and preloads the most commonly used applications into the RAM when you start Windows, so that you can access them faster. The Prefetch folder is located at C:/Windows/Prefetch. The longer you use your system the better it works.

Why you shouldn’t disable it

Only the files used during boot will be Prefetched. The Prefetch folder is not a cache. If you change the value to “2″ the boot time will still be exactly the same!

Speed Up Windows 7

Instead read this guide to speed up Windows 7

Although I agree that some tweaks are not optimal, it’s always a good idea to disable unused services and features that you don’t need. That will really help you to speed up your system.

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Written by: Oliver Krautscheid
Oliver is the founder and lead editor of this site. He is interested in finding new ways to break Windows, find common errors and help others to fix them. Aside from that, he loves to fully customize systems with Rainmeter and Dreamscene, find out more about ancient civilizations like the Chachapoya, sharpen his digital photography skills and create software with a small group of selected developers. If you would like to connect with him to discuss anything, send him a mail!

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One Response to How To *Not* Speed Up Windows 7 Boot Time

  1. Orange Community Approved Comment:
    Kunri Yanto said:

    That’s “tips & tricks” I really appreciate it very much, and look forward to reading much more article from you.

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