Hi, For the short time I ran Vista I seem to remember a scheduled defragmentation set by default, though I suspect that most of the disk activity was the indexing part. I moved back to XP and never looked back :). So, enough people have persuaded me that I need to defragment my disk, so I defragmented my OS drive which is a250GB RAID0 pair. It told me that the disk didn't need defragmenting, which surprised me as it had never been done, and then took over an hour to do some stuff on the drive. The data drive (which is a 1TB RAID0 pair), said it was 5% fragmented, but only took a few minutes to defragment. I suspect this may be because the drive has been filling up over time, without too many deletes, although I do run several subversion checkouts against that drive, so in another way I suspected more fragmentation. Not sure if the RAID0 complicates things, because the data is split across the 2 drives in the set. Andrew. -----Original Message----- From: jaws-uk-bounce@xxxxxxxxxxxxx [mailto:jaws-uk-bounce@xxxxxxxxxxxxx] On Behalf Of George Bell Sent: 16 October 2008 22:23 To: jaws-uk@xxxxxxxxxxxxx Subject: [jaws-uk] Re: computers running slowly Hi Andrew, The disk activity you hear when your Vista system is idle is the infernal indexing process. It is supposed to provide you with fast searches for files, text and all sorts. But it's a major overhead, and a paid in the proverbial, especially when you cold boot. With Vista you can set up scheduled defragmentation, though I don't feel it is particularly efficient. George. -----Original Message----- From: jaws-uk-bounce@xxxxxxxxxxxxx [mailto:jaws-uk-bounce@xxxxxxxxxxxxx] On Behalf Of Andrew Hodgson Sent: 16 October 2008 20:48 To: jaws-uk@xxxxxxxxxxxxx Subject: [jaws-uk] Re: computers running slowly Hi, Do people really find that running these defrag utilities make a difference? I used to do this back in the old Windows days, but I am used to Linux and other operating systems where this wasn't really necessary, and I never really ran the defrag application under Windows XP, though note that Vista does some sort of defrag automatically when idle. Andrew. ** To leave the list, click on the immediately-following link:- ** [mailto:jaws-uk-request@xxxxxxxxxxxxx?subject=unsubscribe] ** If this link doesn't work then send a message to: ** jaws-uk-request@xxxxxxxxxxxxx ** and in the Subject line type ** unsubscribe ** For other list commands such as vacation mode, click on the ** immediately-following link:- ** [mailto:jaws-uk-request@xxxxxxxxxxxxx?subject=faq] ** or send a message, to ** jaws-uk-request@xxxxxxxxxxxxx with the Subject:- faq ** To leave the list, click on the immediately-following link:- ** [mailto:jaws-uk-request@xxxxxxxxxxxxx?subject=unsubscribe] ** If this link doesn't work then send a message to: ** jaws-uk-request@xxxxxxxxxxxxx ** and in the Subject line type ** unsubscribe ** For other list commands such as vacation mode, click on the ** immediately-following link:- ** [mailto:jaws-uk-request@xxxxxxxxxxxxx?subject=faq] ** or send a message, to ** jaws-uk-request@xxxxxxxxxxxxx with the Subject:- faq