In fact nisenson laptop HP brake video. Even in 360p.

The laptop is about 5 years. Maybe a little less.
Was bought as a tool for work and watching movies.
Processor AMD E2-1800 APU with Radeon HD 1.7 GHz
RAM: 4 GB.
Initially, he worked on 8-ke. Worked tolerably well. After a while the laptop, despite the denials by a user, made the decision to voluntarily put yourself Windows 10. After that the laptop began to noticeably slow down in the work, including and began to slow down Youtube videos in any quality.
Thinking that all the fault of 10 ka (as it then did not like very much), changed it to the 7-ku. Nothing really has changed. The video is also slow and is absolutely clean, the system was not the way to behave like a new Windows.
Noticing that the laptop is strongly heated, it was decided to disassemble and clean from dust. In the cooler dust really was a lot. The result - everything slows down.
Was turned off and startup, tried different browsers, updated flash player, checked the laptop for viruses, changed the paging file size. Nothing helps.
That it can be? Really it's somewhere in iron?