system changed

I left son on computer the other night,only to discover things changed.
Lots of things were missing or would not run but all are now back to normal.
One thing left,that is different but not sure its related is that all writing is very bold.it really stands out as different.
how to i change this back to normal.I spend hours on computer and all of a sudden everything in writing has changed.colours are normal,just black writing.
I have had to install antivirus ,firewall and loads of programes,because from what i can make out,before switching computer off he decided to remove lots of entries in reg supreme,in installed programes.
I was lucky he switched computer off after,becaues when i used computer the next day ,i had no antivirus and firewall.

 

That's never good

Have you checked your display properties?

Right-Click desktop, go to properties, then Appearance tab.

Check to see if the color scheme has been changed or if the fonts for certain parts of windows has changed.

 

No these had not changed,but thanks .
You pointed me in right direction,he had changed standard ,to clear type,in fonts.
Now i know what it is ,i can relax

 

Well, glad you got it working.

Happy to "Point you in the right direction"