c:\windows\prefetch folder keeps disappearing.

[John Corliss]

My Prefetch folder keeps disappearing and I have Prefetch enabled. Is
anybody else having this problem and if so, is there a fix for it?

TIA

 

[Mark F.]

My Prefetch folder keeps disappearing and I have Prefetch enabled. Is
anybody else having this problem and if so, is there a fix for it?

TIA

Check the registry key:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Memory
Management\PrefetchParameters

See if the "EnablePrefetcher" value name's DWORD value is set to zero. This
key has the following values: 0 = Disabled, 1 = Application launch
prefetching enabled, 2 = Boot prefetching enabled, and 3 = Application
launch and boot enabled.

The prefetch folder is a "system" folder for the purpose of collecting
hashes of startup files, to assist in faster startups. If the folder is
somehow deleted is automatically rebuilt. There is at least one KB article,
that I know of, that recommends deleting the prefetch files if they become
corrupted.

Mark

 

[John Corliss]

John Corliss wrote

Check the registry key:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Memory
Management\PrefetchParameters

See if the "EnablePrefetcher" value name's DWORD value is set to zero. This
key has the following values: 0 = Disabled, 1 = Application launch
prefetching enabled, 2 = Boot prefetching enabled, and 3 = Application
launch and boot enabled.

The prefetch folder is a "system" folder for the purpose of collecting
hashes of startup files, to assist in faster startups. If the folder is
somehow deleted is automatically rebuilt. There is at least one KB article,
that I know of, that recommends deleting the prefetch files if they become
corrupted.

Thanks for replying Mark.

Guess I should have stated that once I turned off Prefetching via that
registry key (changed the value to "0") to see if there was any
performance difference. There was, so I re-enabled prefetching. Seems
like the folder disappears every time I reboot. At any rate, I just
checked again (I did so before sending my OP) and the setting is still at 3.

I now have a backed up copy of the folder in the Windows folder and
might set up a restoration batch file to run at system startup.

 

[John Corliss]

My Prefetch folder keeps disappearing and I have Prefetch enabled. Is
anybody else having this problem and if so, is there a fix for it?

TIA

Never mind. It turned out to be a setting in a program I'm using. I have
it all fixed now.