Your System may be slow due to following reason
- Too many programs running at startup or in the background
- Data Corruption, hard disk fragmentation
- Missing Windows updates or outdated drivers
- Not enough hard drive space, too many unused programs
- Left over programs, old cached and temporary files
So Follow these steps to fix computer problem::
- Delete all the temp files
- Remove unused programs
- install latest drivers from the manufacturer site
- Install and run antispyware software
- Free up wasted space with Disk Cleanup tool
- Defragment your hard disk drive
If you are unable to perform above tasks then use a single utility tool like PC Fresher that will fix windows errors that cause of system slow