Windows 10: Computer becomes very slow/laggy a little while after start up, restart fixes it

This started a week or two ago; my computer becomes quite slow/laggy a bit after I start it up, but restarting fixes it. Normally I'd think that this is just too much stuff going on but whenever this happens cpu usage is always below 10%, and memory usage is anywhere from 40-60% average memory usage. By "slow" I mean trying to open any given application takes upwards of 10 minutes, or it just doesnt open at all however Task Manager usually opens significantly faster than any other application. Please note that nothing out of the ordinary had happened before or around when this problem arose

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Slow and laggy

I just upgraded to win10 and now my computer takes a long time to restart. It's also slow and laggy once it's rebooted. How can I fix this?

 

slow and laggy performance

windows 10 is little bit laggy and slow why please tell me

is intel hd graphics good

is K7 total security intivirus good

thank you

 

Computer started to get more laggy


Hi all,

Does anyone know how to fix my problem?
One year ago, the computer was installed with Windows 7 and was upgraded to Windows 10.
About 3 months ago, the computer ran fine, and even the startup time was <10sec.
2 weeks ago, I got a virus and quickly deleted it with Malwarebytes and AdwCleaner.
I don't know why, but after that event, the computer quickly slowed down and right now, the startup time is 45 sec.

What happened and what is the reason?

Speccy Info: