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val
Contributor
val
Posts: 16
Registered: ‎09-22-2009

prefetch folder

this probably is not a Norton issue, but since it has to do with security I'll take a shot at posting here

 

NAV2009

Windows Vista OS

Windows firewall

 

 

Can you delete the prefetch folder and its contents without mucking up security of the OS?

 

Also noticed in a subfolder in the prefetch folder a folder titled readyBoot. It had an item Trace1.fx

 

I googled this trace1.fx and only found confusion. Can this item be deleted too?

Norton Fighter
mdturner
Posts: 5,308
Registered: ‎04-11-2008

Re: prefetch folder

[ Edited ]

Why would you want to delete this folder? It is part of the Windows boot process.

Message Edited by mdturner on 09-23-2009 09:34 PM

We look forward to the time when the Power of Love will replace the Love of Power. Then will our world know the blessings of peace. ~William Ewart Gladstone

val
Contributor
val
Posts: 16
Registered: ‎09-22-2009

Re: prefetch folder

oops. I did delete the contents. Will that cause me problems now? I was able to reboot without issue. and now when I look at it, it seems to have repopulated to some degree including a trac1.fx  entry in the subfolder readyboot

 

did I really mess things up??   Now I'm really worried

Norton Fighter
mdturner
Posts: 5,308
Registered: ‎04-11-2008

Re: prefetch folder


val wrote:

oops. I did delete the contents. Will that cause me problems now? I was able to reboot without issue. and now when I look at it, it seems to have repopulated to some degree including a trac1.fx  entry in the subfolder readyboot

 

did I really mess things up??   Now I'm really worried


Val,

 

You've been very lucky.

 

A basic rule of thumb - if you don't know what something is then don't mess with it until you find out.

Next rule of thumb - if you ask someone whether it is safe to delete something wait for the answer before you delete it.

 

 

Why are you deleting system files??

We look forward to the time when the Power of Love will replace the Love of Power. Then will our world know the blessings of peace. ~William Ewart Gladstone

Keylogger Crusher
metalhead82
Posts: 200
Registered: ‎08-06-2009

Re: prefetch folder


val wrote:

oops. I did delete the contents. Will that cause me problems now? I was able to reboot without issue. and now when I look at it, it seems to have repopulated to some degree including a trac1.fx  entry in the subfolder readyboot

 

did I really mess things up??   Now I'm really worried


 

No, you didn't mess anything up. It will just mean that it will have to be re-populated and re-optimised on subsequent boots and program startups and you may notice slower boot and program startup performance until it has been completed.

 

Interfering with files inside the Windows or Program Files directory is not advisable if you do not know what you are doing. If you need to ask about something like that, you don't understand it and therefore should leave it well alone.

 

Windows Vista looks after itself quite nicely without it's system files being interfered with. :smileywink: Don't take that the wrong way, it's just I wouldn't want you to do something stupid and hose your system. :smileyvery-happy:

_____________________________________________________________________
Microsoft Security Essentials 1.0 - Windows 7 Ultimate x64 RTM (Build 7600)
Uninstalled NIS 2010 due to the unfixed IPS driver issue - network has never been faster!
val
Contributor
val
Posts: 16
Registered: ‎09-22-2009

Re: prefetch folder

I had read that by cleaning out the prefetch, you  can increase performance. I know now that this is not right to do.

But as I use programsand such, items in the prefetch will repopulate right?

 

Now I'm scared I messed up my system and even worse may have messed up my Norton by deleteing contents of the prefetch folder

Have I?

I did just find this article that says:

 

"The prefetch folder is simply Windows saving some of that work so it can be re-used later, when you run the same program again. Nothing more."

"As we've seen, by deleting the contents of the prefetch folder, you'll force Windows to do more work the next time it starts running programs, as it has no pre-calculated information for a head start.

And Windows keeps only at most 128 items in prefetch, so it always contains information for the most recent and commonly run programs."

(http://ask-leo.com/what_is_the_prefetch_folder_and_why_are_there_copies_of_system_files_there.html)

 

So that should mean that it will repopulate itself right?

AS Isaid, I'm really worried now.

 

have others done this before and come away unscathed? I won't do it again. Should I do system restore? It sounds lie if it only keeps the most recent and common 128 items, it should come back to par right?

 

please help :(

 

Again particularly concerned as this pertains to my Norton security

Norton Fighter
mdturner
Posts: 5,308
Registered: ‎04-11-2008

Re: prefetch folder

Val,

 

You haven't damaged either of them, don't worry.

We look forward to the time when the Power of Love will replace the Love of Power. Then will our world know the blessings of peace. ~William Ewart Gladstone

val
Contributor
val
Posts: 16
Registered: ‎09-22-2009

Re: prefetch folder

thanks metalhead. I have only done this once (today) and have had this comp at least a year with many reboots.

I take it that if one does this by mistake, it will rectify itself, but maybe go slower on reboot until all files get repopulated into the prefetch folder?

 

I do see that the several trac1.fx entries in the subfolder readyboot are gone but there were only like 5 going back to 9/19/09 and now I have one dated 9/23/09

 

 

 

val
Contributor
val
Posts: 16
Registered: ‎09-22-2009

Re: prefetch folder

[ Edited ]

thanks MDturner

So if one is dumb enough like me to delete the items in prefetch folder, most likely it will just slow up reboot and processing for a time period? (provided I don't do this again)

And not mess with security (norton and windows)?

 

And items will make their way back?

 

Message Edited by val on 09-23-2009 02:12 PM
Keylogger Crusher
metalhead82
Posts: 200
Registered: ‎08-06-2009

Re: prefetch folder

No, cleaning out the prefetch does the opposite. There are a lot of myths regarding Windows performance on a lot of 'tweaking' sites, most of which are a waste of time, some of which worsen performance.

 

The prefetch folder is basically a store for regularly accessed programs to enable their load time to be reduced. (It's a little more complex than that, but thats the gist of it.) In Vista and Windows 7, it also works in combination with ReadyBoot (which speeds up the boot time.)

 

The folder can be deleted and the Superfetch service can be disabled with no problems, however, the issue that will occur is reduced performance for booting and program starts.

 

Please don't worry about it, there is no need to worry at all, it will happily repopulate itself within 2 or 3 boots and then you will be at the same point as before you deleted it. :smileyhappy:

_____________________________________________________________________
Microsoft Security Essentials 1.0 - Windows 7 Ultimate x64 RTM (Build 7600)
Uninstalled NIS 2010 due to the unfixed IPS driver issue - network has never been faster!