Easiest way today would be downloading the boot tool software from Microsoft directly. Keep in mind comming from Window 7 you would need a licence key for Windows 8.1. Windows 10 how ever, is free for Windows 7 users for a limited time.
percentage = 88% Letter grade = B or (B+ depending on the grading scale)
In most teacher's views, an 81% is viewed as a B-.
Most scales have it at a B- Check to see which scale applies to you.
81% or B-
81% or B-
in my school it a b-
the answer is 81 3x3=9 9x3=27 27x3=81 by the way i am only in 3rd grade
Upgrading to that patch is no longer available. The reason for this is because Windows has just released Windows 10, if you want to upgrade it would need to be to that OS. This can be done in your control panel, there will be an option there.
Windows 8 is not free since the upgrade is for new computers. If you want to upgrade you will need to pay the full price.
It is 59.6%. How that translates to grades depends on the scoring scheme.
81 percent which is typically a low B.
9 x 9 = 81 because if you count 9 times it would make up or be 81