Professor Teaches Windows 8.1

Professor Teaches Windows 8.1 is the quickest and easiest way to build your skills and improve your productivity with this new operating system. Unlike previous versions, Windows 8.1 is a completely new operating system and not an update.

GEM score

-0

24h

—

GEM rank

#159,688 of 179,652

Scores as of 26 Jul 2026

Free view: this score is three months behind the live score.

Score history (3 to 12 months ago)

Stats through 26 Jul 2026

Average

-0

Peak

-0

Tracked since

21 May 2025

GEM score-026 Jul 2026Latest free

Scores before 26 July 2026 were produced by an earlier version of our scoring process.

3 to 12 months ago as a table

Daily GEM score from 3 to 12 months ago, newest first
Date	GEM score
Subscribe to our Patreon for access
26 Jul 2026	-0
19 Jul 2026	-0
25 Jun 2026	-0
20 Jun 2026	-0
17 Jun 2026	-0
15 Jun 2026	-0
9 Jun 2026	-0
27 May 2026	-0
19 May 2026	-0
14 May 2026	-0
11 May 2026	-0
10 May 2026	-0
9 May 2026	-0
7 May 2026

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