Some Windows 10 users asked for help, “why my computer is slow computer suddenly, and what I can do to fix it?” The reasons for sudden slow of Windows 10, the latest version of Microsoft system, could be various: that you download programs, install extensions, surf the web, create files and fill your hard drive with movies and music, inevitably build up virtual junks which would decrease your PC’s performance. Therefore, unless it is due to some kind of system error or virus, sudden slowness on Windows 10 is not caused by sudden elements.

Happily, here we get the most common reasons why your computer is slowing down – and the simple measures you can take to get its groove back.

Clean Temp files/cache/unwanted old files

To clean all these junk files and system clutter much easier, one click PC checkup in Neptune SystemCare Ultimate can help you, which automatically removes temporary files and often hidden, useless data that clutter your drive, confuse the OS, and slow things down.

Remove broken/leftover registry entries

Since the registry is difficult for most users to edit, we would better use the registry cleaner. Open Neptune SystemCare Ultimate, and clean the registry under System Cleaner tab.

Clean and Defrag hard drive

10% left space of hard drive is far away enough for computer’s smooth running. Two-thirds of non-used memory space is a cleverer choice. Therefore, you should have a complete clean on your hard drive. Open Advanced Cleaner to find more useless space and free up more space.

As for hard drive defrag, is a bit of an outdated solution but for older drives, it's worth a check. Open Disk Defrag to analyze and defrag to stay streamlined and organized, and to prevent freezes and crashes when duplicates compete for system resources.

Decrease unnecessary startup item

You can manage the programs and services you do not want to launch automatically on PC Startup in one-click. Given safe-to-disable ratings, you can do it freely.

Keep an eye on CPU

Doing a trillion things at once is exactly why we have computers, but once the CPU is full, the computer is going to falter. The demands of the open programs are going beyond your computer's memory and processing power, you'll notice a slowdown. Therefore, keeping the Neptune Floating Tray and clicking on it when the CPU is over 40%, would solve the slowness to some extent.

Thus, "my computer is slow" problem needs to solved with daily maintenance and an advanced PC optimization utility.