I am facing constant slow performance issues in Outlook, especially when opening emails or switching folders. After checking a bit, I noticed that some of my PST files are still in the old ANSI format, which seems to be causing size limits and performance problems. Has anyone dealt with this before? Does upgrading old ANSI PST files to Unicode PST actually help improve Outlook speed? If yes, what is the safest way to upgrade the PST file without data loss?

If your Outlook application is frequently slowing down, hanging, or taking a long time to load emails, a major reason could be that you're still using outdated ANSI PST files. Older PST files are limited to 2GB, while Unicode PSTs have a much higher storage limit and offer better performance. If your Outlook is slowing down due to outdated ANSI PST files, I recommend trying Softaken PST Upgrade Software. This tool upgrades old 2GB-limited ANSI PSTs directly to Unicode PSTs without any data loss. I've used it myself; all emails, attachments, contacts, calendars, etc. remained intact, & Outlook speed improved significantly. The best part is that its interface is very simple, making it easy for even users without technical knowledge to operate. If your PST is repeatedly corrupted or Outlook hangs, this tool is a great solution. PST Upgrade Software really makes the job of upgrading old Outlook PST files easier.