Microsoft Vista Disk Thrash Superfetch ?
Ok, I’m lucky enough to have got a new pc in the last week and being the techie geek I am I couldn’t resist trying out Microsoft Vista.
The version was Microsoft Vista Ultimate and to be honest the install was really a breeze with surprisingly even the wireless card being picked up, the pc information accurately reported.
I have heard so much bad press about Vista I was a little uneasy to say the least, but I have to say the overall experience of install wasn’t anywhere near as bad as I had anticipated.
All was going really well, I was like the cat that got the thick cream and a Cheshire grin illuminated the Horton household.
Well more disk thrashing activity than an enthusiastic dominatrix on speed. My PC drive was going into overdrive. No worries I thought, this must be down to something really simple, such as scheduled defragmentation or that the pc is indexing the drive and things will surely subside.
I left the pc on overnight….
My wife Catherine then needed to look at the bus timetable for a summer job she started this week, no problem I thought just open the document in Adobe and all will be well.
Well, shortly after my hair had turned grey and wrinkles had formed over my ready warn typing finger the document opened.
After a bit of online research the things to check are:
Scheduled defrag – what’s it doing?
Indexing- Turn it off – I did.
Superfetch turn off, which involves a bit of a registry tweak.
There is a way to disable superfetch in vista by setting the following registry key to a value of “0″:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management\PrefetchParameters\EnableSuperfetch
A value of 1 prefetches boot processes, 2 prefetches applications and 3 is for both.
This service is not beneficial to those having a memory less than 2Gb, what! Is my 1GB not enough?
For now this seems to have remedied the disk thrash but anyone else who has experienced this, I’d like to hear your work-rounds.