Problem Uploading to Board

I have two Arduino Unos and a laptop with windows 10 and I cant get any ide I have tried to upload to the boards. It just says problem uploading to board. If anyone can help me please reply thanks.

Have you read this and followed the suggestions?

Yes I did read through that and it didn't work. I have tried uploading a program on 3 computers and it only worked on one.

I uninstalled everything arduino on my laptop and reinstalled the software and it now works.