Calendar crashes on one computer

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Outlook version
Email Account
I am using outlook 2007 on a comcast hosted server and I can access my data (usually) from my desktop, my laptop and my android phone. Suddenly my desktop version crashes whenever I try to open the calendar. It is fine in the other modules (email, contacts) and I have no problem with any module on the laptop. I have tried running outlook diagnostics and have run scanpst multiple times - the last time getting 'no error' as the message. Can I just delete the pst and let it rebuild from the exchange side? I depend on the calendar heavily for all my scheduling. I have also rebooted the desktop a few times. Oh - I was confused by the outlook diagnostics output-it said no problems and then listed a number of problems like 'your hard drive will die soon, maybe' or other scary words to that effect. Thanks --- Scott

Diane Poremsky

Senior Member
Outlook version
Outlook 2016 32 bit
Email Account
Office 365 Exchange
it sounds like the message is telling you the data file is ok but you might have some hardware issues. Such issues could cause problems in outlook or not. FWIW, i had a disk failure error for months and it never failed but I've also had disks fail without warnings.

Do you have an exchange mailbox? Comcast doesn't use exchange AFAIK.

Try opening Outlook in Safe mode and see if it works. (Hold Ctrl as you click on the Outlook icon to start in Safe mode.)

Because only the calendar is affected it could be a corrupt view - *note - this will wipe out an custom views you may have created.

In the Start menu, search field or Windows key+R to open the Run command, type

outlook.exe /cleanviews

and press enter. Note, there is a space between outlook.exe and the /.

For more info, see


Outlook version
Email Account
Thank you, Obi-won! I have run outlook in safe mode - no help, it still crashed when I switched to the calendar! I will try the clean view now but I have been sitting here hoping you would answer! Oh -- Comcast business services gives an outlook exchange box and local copies of outlook! I switched from a DSL to Comcast at the office to get their VOIP and faster internet service. As it turned out, my syncing software to my then windows mobile phone was discontinued by Verizon and I found that I could use touchdown on my new android phone to sync with the exchange server on Comcast. I remember you from years ago (10?) when I first was using Outlook 2000 standalone and you were so helpful then. I'll go try clean view now!

I just opened with cleanviews and the calendar opened! Do I just close outlook and reopen as usual now? I'll go check out the link you marked on views! Thank you, Thank You!

Diane Poremsky

Senior Member
Outlook version
Outlook 2016 32 bit
Email Account
Office 365 Exchange
Glad that cleanviews worked and that i was able to help you again. :)

Since comcast does have exchange, it is possible to delete the offline cache and re-sync, but it probably would not have fixed it - the views are stored in the mailbox or mailbox folders. It's possible the bad view did not sync up to the server though - but using cleanviews is often easier than redownloading a large mailbox.
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