old prefetching data leaning

[Dink]

Ccleaner is a great application,if not the best and safest system cleaning available of its type...but the only issue that i have with it is the old prefetch cleaning option on the advanced tab,when the consensus is amongst the most highly qualified technicians who adamantly discourage ever doing, since it is a fact that doing so will noticeably degrade system and application performance? I personally have never used it

[Nergal]

Thus Old prefetch is all that ccleaner will clean. It only will clean Prefetch data which has not been used in a certain amount of time (not sure the length of time but it is a significant amount).

 

there should be no worry in using this section of ccleaner

[kroozer]

On my Vista I have 118 .pf Windows prefetch files 10/27-10/13 and 4 .pf program files on 8/20, total 122.

CCleaner offers to delete 3, which would drop it to 119.*

 

On XP, .pf is self-maintained at 128. I don't know what the limit is on Vista & Win7.

 

*Edited after recount.

[Winapp2.ini]

Old Prefetch Data wants to delete C:\Windows\Prefetch\CCLEANER.EXE-72C9B7B3.pf

 

[pwillener]

the only issue that i have with it is the old prefetch cleaning option on the advanced tab,when the consensus is amongst the most highly qualified technicians who adamantly discourage ever doing, since it is a fact that doing so will noticeably degrade system and application performance?

That is not quite accurate. Deleting the entire PF cache will degrade performance. But not deleting old, unused entries.

 

From my experience, CCleaner does it better than Windows. When the PF cache becomes "full" (128 entries), then Windows will delete half of them, regardless of their "last used date".

[Aethec]

That is not quite accurate. Deleting the entire PF cache will degrade performance. But not deleting old, unused entries.

 

From my experience, CCleaner does it better than Windows. When the PF cache becomes "full" (128 entries), then Windows will delete half of them, regardless of their "last used date".

 

I thought Windows deleted the oldest files first when the PF folder becomes "full"...never tested, though.