Windows 10: Laptop Slow After System Reformat

So i bought this gaming laptop about 6 months ago, and it has run perfectly until a couple days ago i let one of my siblings use it and they got it infected with a whole hoard of viruses. And so I ended up reformatting my computer to remove them because they were significantly slowing my computer. But now even after I reformatted my laptop its still running quite slow. Ive run antivirus software to see if the virus is still there(Malwarebytes) and it seems to be gone. So what do I do to speed up my laptop again?

:)

 

Reformatting Laptop

I'm planning to reformat my laptop and in the Activation tab it says that i have a digital license activated and linked to a microsoft account. My question is if i reformat my laptop would it wipe the Windows 10? I purchased this laptop not knowing if
windows 10 is the default OS or it was installed by the store.

The main reason why i'm reformatting my laptop is because of USB mass storage driver is faulty and no update or installation is fixing it, i even contacted microsoft agents and ASUS agents (my laptop is ASUS x507ubr) and tried all the things they said from
system recovery upto downloading manually of specific drivers. Finally i decided to take it into the local ASUS store so that they could take a look and they said the only way is reformatting a laptop. They suggested that if i know how to do it i should do
it so i wont take extra charges. Hence my question above.

 

Reformat upgraded win10 laptop


Is there a way to know what my license number is? Laptop is not with me at the moment so I could not check it. I believe it still has the sticker where the license is printed at. Does it retain the old license or a new one is made when I upgraded to Win10?

Second question, what would be the best step in reformatting the laptop? Is there an option in Win10 where it would reformat and come back immediately to Win10?

 

System slow down

Hello,

Slow PC performance can be caused by several factors. Since you are aware of the issue's source, we suggest that you run the
Maintenance task. This will help you in checking and resolving any issues that is causing your device to slow down. Here are the steps:

• Press Windows + X.
• Select Control Panel.
• Select Troubleshooting.
• Click on Run maintenance task under System and Security.

If the issue is still not resolved, feel free to let us know and we'll assist you further.