trying to access a website that requires adobe

However every time I enter an Employer training course it asks me to un-block flash player and when I do it collapses the window and I'm back to the initial website. 

It sounds like the issue you are encountering is with the content itself, not Flash Player.  Flash Player actually isn't at play here.  The Flash detection is between the browser and the content.  If the browser detects the content requires Flash, it'll prompt the user to allow it.  Sounds like this is happening, but I don't know what you mean by 'it collapses the window and I'm back to the initial website' (screenshots are always helpful).  Sometimes, training content launches a pop-up window, or new a tab.  Is your browser configured to block pop-ups?  No idea if this is what's happening here, but sometimes, if the browser is configured to block pop-ups, it may appear to the end user as if nothing is happening.

I recommend contacting the content developer (or your employer) for assistance.

All browsers, including Microsoft Edge, block/disable Flash by default.  They rely on the content's Flash detection scripts to determine if the content requires Flash or not.  If it does, it prompts the user to unblock/allow Flash. https://helpx.adobe.com/flash-player/kb/flash-player-issues-windows-10-edge.html may be of assistance.  If not, please contact the content developer for assistance, or try a different browser.

Note that Microsoft embeds Flash Player in Edge & IE browsers, and all updates are released by Microsoft via Windows updates.  There isn't a separate installer for these browsers.

If you want to try a different browser, without having to install Flash Player, Google embeds Flash Player in Chrome.  If you try Chrome and encounter issues, Google's tech note https://support.google.com/chrome/answer/6258784, has information on enabling/allowing Flash in Chrome