exchange 2010, outlook

i have a user who is complaining that his c drive is getting full. he has 4 or 5 times closes the outlook and deletes .ost file, but when he deletes email , it says drive is full. he has outlook installed on his laptop

I recreated his outlook profile, it didn't help

I tried to move his .ost file to d drive  through advanced setting in mail icon it is greyed out .when I try to browse .

his space on c drive fills up quickly
pramod1Asked:
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Mal OsborneAlpha GeekCommented:
You COULD turn off caching. That way there will be no .OST file.
pramod1Author Commented:
he is in online mode
Mal OsborneAlpha GeekCommented:
In that case there should not be a .OST file.
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pramod1Author Commented:
there is .ost file
systechadminConsultantCommented:
You will need to first close the outlook, open mail icon from Control panel, then email account settings, disable the cache mode, click ok and close all. Once again open the mail and go to Advanced settings, Click "Disable Offline Use" once it is done, browse option will work then you can create the OST on different drive.

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