Overview - what this guide covers
We’ll walk through proven fixes and show how PC-Care.ai automates related maintenance.
Symptoms you might see
- Outlook freezes when opening mail
- Search results incomplete
- High CPU while Outlook open
- Startup slow after login
Not Responding occurs when COM add-ins block the UI or PST files are oversized. Search lag signals indexing backlog. High CPU points to scanning or background tasks.
Manual fixes - step by step
- Start Outlook in Safe Mode
- Disable COM add-ins
- Repair PST or OST with SCANPST
- Rebuild Windows Search index
- Create new Outlook profile
- Run PC-Care.ai to trim startups
Safe Mode starts Outlook without extensions. Disabling add-ins isolates offenders. Repairing PST files fixes structural corruption. Rebuilding the index cleans partial or corrupt entries. New profile clears profile-level corruption.
Prevention - keep the issue from coming back
Archive old mail and compact PST/OST regularly
Limit add-ins to essentials
Run PC-Care.ai weekly for consistent performance
How PC-Care.ai helps
PC-Care.ai reduces background CPU and trims startup apps for faster Outlook.
Typical results include smoother folder switching and fewer “Not Responding” popups.
Run Free AI Scan
Let PC-Care.ai Diagnose Your PC Automatically
Skip the guesswork. PC-Care.ai's AI scan analyses your actual running processes, startup load, drivers, and disk health in 2 minutes — and gives you a ranked list of what to fix first.
Full System Scan
Maps CPU, RAM, disk, drivers, and startup load in 2 minutes.
Automated Cleanup
Removes temp files, update caches, and startup bloat safely.
One-Click Fixes
Apply recommended optimisations with a single click.