What to do if Windows 10 began to lag?

Question

Windows

Good day to all! After reinstalling the OS from Win 10 to Win 10, it started to lag.
Folders freeze, then do not respond. Slows down the browser, video in it, pages. In games, sharp drawdowns of FPS for a few seconds.
This has never happened before, which is why I'm asking this question.
Configuration:
Processor: AMD A6-3650
Graphics: Integrated graphics Radeon HD 6530D
RAM: Two 4gb sticks. One gigabyte takes the embedded video.
I don’t see the reasons for such brakes, since the processor is not overloaded at such moments (up to 70%), the RAM is always around 40-60%. All drivers are up to date, the paging file is installed with a margin on the system disk. The programs are the same as before. Moreover, the autorun is cleaned up and only the video driver and bluetooth start with Windows. The HDD has been completely formatted.
I ask you to help me solve the problem, gentlemen!
UPD: Problem solved! The paging file was placed by mistake not on the system drive. I don’t know if this could be the reason, but after I installed the paging file on the system one, everything began to function normally.
Thank you all very much for your advice! Maybe in the future they will be useful to me)

Answer 1

While working with the "brakes" open the task manager, on the "performance" tab - call the resource monitor, see the graphs "processor", "memory", "disk", "network". Which one will be filled close to 100%, that one is the "bottleneck" of the system, and, accordingly, needs to be strengthened.
I guess the reason is an overflowing hard disk access queue, in the case of magnetic HDDs and constantly downloaded / indexed updates, this is an almost guaranteed reason.
By the way, it makes sense to disable the search indexing service on magnetic screws in this regard.

Answer 2

Ilya Borisenko , Video slows down - install fresh codecs (K-Lite, etc.).
See if all the drivers are installed (there are no unidentified devices in the device manager). For video, install native drivers from the manufacturer's website, and not those that Windows installed.
Look at the Windows logs, if something system does not work, then there should be messages in the log. By the error message, you can understand in which component of Windows the problem is. If there are problems with the disk, then there will be errors in the log.
Then we look at the task manager on the detail tab, sort by CPU and see which process is eating the CPU. If there is an abnormal loading, we deal with this process.
In general, you need to understand what loads the system and deal with the cause of the brakes.

Answer 3

First of all, you need to check the HDD for defects, the Victoria program will help you with this (it is advisable to use the boot method from under DOS), and in general, you need to think about purchasing an SSD with HDD over time, there will always be problems