Measure before changing
Restart the PC and use Task Manager to observe CPU, memory, disk, and startup impact while the slowdown occurs.
Reduce startup load
Disable only nonessential startup apps you recognize. Keep security, accessibility, and required hardware utilities enabled.
Create free storage space
Use Windows Storage settings to remove temporary files and move large personal files. Keep enough free space for updates and virtual memory.
Update selectively
Install supported Windows updates and manufacturer drivers, then test. Avoid changing several drivers or utilities at once.
Consider hardware limits
An older hard drive, insufficient memory, thermal throttling, or a failing drive may limit performance beyond what software cleanup can solve.
These steps provide general educational guidance and cannot guarantee a repair. Software cannot physically repair failed storage, damaged memory, overheating components, broken connectors, or liquid damage.