Skip upgrades; five tweaks speed old PCs

Disable non-critical Windows services like Search Indexing and diagnostic data sharing to free system resources for active tasks. Reconfigure visual effects to a bare minimum on older machines with fewer resources. Clean dust from fans and vents to prevent thermal throttling that reduces performance when temperatures rise. Keep drive storage below 85% capacity using Disk Cleanup or Storage Sense to avoid slowdowns. Turn off the computer instead of closing the lid to stop background processes draining battery power.