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Find the suspect add-ins and uncheck their corresponding boxes.Go to Account Settings and click on Data files.This creates a new data file, which relieves Outlook of having to strain from an oversized PST/OST file. Keep current and previous months’ emails in your Inbox folder, and the rest of them, just archive. You can set up auto-archiving so that the Inbox only retains some of those many emails. Millions of email users, including Outlook, have thousands of emails – usually unread – in their inbox, which can cause serious problems when using PST files. However, you can only enable this option when connecting Outlook with Exchange server. This takes the data file from the PST and caches it on your OST, hence speeding up Outlook as it won’t have to read its data file via a network, but through a locally stored data file. You can have one or two shared calendars, but more data means a sluggish Outlook. Outlook syncs RSS feeds from Internet Explorer by default, to its RSS reader, so if you have many bookmarked feeds, the syncing could slow down Outlook. Archive your emails by year to relieve the PST file.Save attachments you need to the disk but remove them from the PST.Delete all unwanted old emails (with bulky attachments).Find a folder called Larger than 100 Kb.
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Remove whatever causes the PST to bloat up If this and the other methods above fail, you have to uninstall and reinstall Outlook/Office.ħ. You can repair Outlook by choosing Change in Apps and features (right click Start and select Apps and Features). If none of the above steps worked, then your Outlook is probably damaged.
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Click Go, and on the next screen displayed, remove the checkmarks.Click add in’s and scroll down to Manage.If Outlook is slow in Safe Mode, then an add-in could be causing the issue.Type outlook.exe /safe and press Enter.
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