won't Defrag

baruraf · 20 Dec 2015 at 17:37

I'm tech support and have a lot of users with large OST files. PST and Archive are turned off by GP.
One user has 20.9GB in OST Reg hack in for 30 gig limit. wont defreag , in safe mode, using contig or xp defrag util. Any ideas why not or how to get this defragged it's killing outlook performance.

tribz · 20 Dec 2015 at 18:16

I've always found ost/pst files are hard work when they get to that size. They're better on an SSD but best if you can get the mailbox size down.

Liquiduk · 20 Dec 2015 at 18:23

20Gb OST is well above what an OST can really handle from personal experience also, probs gunna have to gut that out.

smogsy · 20 Dec 2015 at 19:49

If you can get into outlook run the compression tool. Might help a lot I saved 5gb once.

yashiro · 21 Dec 2015 at 13:54

Move file off the computer. Defrag entire drive. Move file back.