Hi,
Thank you for sharing your question. I understand how frustrating it is to deal with repeated Office error codes such as 30045‑29 and 30045‑44, especially when repairs and uninstalls fail, and at the same time Outlook stops indexing your emails properly. It’s completely reasonable to feel stuck because both issues interrupt your normal work and can appear related even when they come from different causes. I am here to help.
Your second issue with Outlook search not returning results is often caused by incomplete indexing or data file problems. Microsoft Learn notes that Outlook search can fail when indexing is stuck, when Windows Search is not enabled, or when the index needs to be rebuilt. Even when indexing says "completed," Outlook may still be unable to search if the profile is corrupted or the data file isn’t included in the “locations to index.”
The best way to move forward is to remove Office using Microsoft’s uninstall tool, reinstall a clean copy from your Microsoft account, and then repair Outlook search by checking that Outlook is included in Indexing Options and rebuilding the index again after reinstalling Office. This usually resolves both the update errors and indexing failures, especially when they stem from deeper installation corruption.
To help narrow down the next steps, may I ask whether you were running Microsoft 365 from a pre‑installed trial on your device, or if you installed it yourself later? This will help determine which uninstall method will work most effectively. Please feel free to follow up so I can guide you step‑by‑step until both the installation errors and Outlook search issues are fully resolved.
Best Regards,
Noel