Best way to speed up my windows 10 pc as running very slow

Adding RAM is one of the most effective way to speed up a sluggish Windows 10 PC. If your system has less than 8GB of memory, modern applications and Windows itself will constantly be forced to use your much slower hard drive or SSD as virtual memory, causing significant delays, freezing, and overall poor responsiveness. This constant data swapping, or "page filing," is a primary reason for a slow experience during multitasking.

Upgrading to at least 8GB, or ideally 16GB, provides a substantial and immediate improvement for speeding up a Windows 10 PC. With adequate RAM, your PC can keep all your active applications and system processes readily accessible, eliminating the bottleneck of slow disk-based swapping. You'll notice faster application launches, smoother switching between programs, and a general elimination of hesitation, especially when using web browsers with multiple tabs or standard office software.

Before purchasing, you must check your PC's compatibility. Use a tool like CPU-Z to identify your current RAM type (DDR3 or DDR4), speed, and how many slots are available. For the best results, aim to install RAM in matching pairs (dual-channel mode) and ensure any new modules match the specifications of your existing ones if you're not replacing all sticks entirely.