Hi! It's actually not that hard to create an automated strategy with 100% win rate:
The system "scalps" daily bars when a long-term signal is achieved. It uses a fixed TP, and the SL is activated when an opposite signal appears (it's a market order). You have to:
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Optimize over a 10 year period with in-sample and out-of-sample periods to validate.
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Optimize a fixed TP and indicator periods so it gives you a result with a minimal drawdown (don't even look at the profit yet). The parameters with the least Drawdown have the highest chance of performing well in the future without overfitting (i have tested this concept over and over with satisfying results).
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Look at the trades and your indicator to ensure it gives you a "tight" enough stop-loss signal (remember that you close a losing trade when the indicator tells you to do that, never use a fixed stop loss level). I like the Gann Hi-Lo Activator SSL because it gives you this type of signal with a relatively tight stop loss.
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Once you have validated your parameters you can Increase the risk of the system until you reach an acceptable drawdown level (less than 20% works for me). You can also activate compounding at this point.
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Repeat the process with another market and/or time frame to create a respectable portfolio of non-correlated signals.
This is my current project, and I believe it really leverages the high-win rates by taking full advantage of intra-day volatility (even noise). There are some issues with it:
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Small sample of trades. You have to wait months for signals, so you have to create dozens of uncorrelated systems to make it worth your time.
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It has a negative risk-reward ratio, so you have to pick the type of signal (indicator) very carefully as some can let losers run forever when you pick longer periods.
A more mainstream option is to look for an expert on mean reversion systems as these have better winning chances than trend systems! Hope this helps, i keep on experimenting 
