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Minimum Requirements

To run the ESTS programs, your computer will just need a couple things:

Operating System

Windows XP, Windows Vista, Windows 7, Windows 8, or Mac OS X 5.7 or higher.


Core 2 Duo 2 Ghz, or greater

Memory (RAM)

2 GB or greater

Internet Connection

ADSL (128 kb/s) or faster

Monitor Resolution

1024 x 768, or greater

Web Browser

Internet Explorer 8 or higher,

Mozilla Firefox 13.0 or higher,

or Google Chrome 17.0 or higher

Safari is NOT supported at this time.


Course requires version 9 or higher 


Adobe Acrobat Reader 8 or higher

For Large Organizations

Recommend Web Caching appliances/ Web proxies for offices that host 5 or more end-users taking the ESTS course.



This course doesn’t work on my mobile device

All of the courses require Adobe Flash to be installed on the device you take the course on. Many mobile devices on the market today including most Android phones, iPhones and iPads can not run Adobe Flash. As a result, you will be unable to take the course on these devices.

To install Flash on your computer or laptop, or check if you already have it, please visit this link:   Download Adobe Flash Player

I didn’t get my login information in an email

Almost always, this type of problem is the result of a spam or junk email filter. Please double check your spam and junk folder and if you find your email there, please add us to your safe list so your emails don’t get held in the future.

If you are using a company email address, it is also possible that your company’s spam filter may have blocked the email before it even made it to your inbox, junk or spam. You will need to contact your company’s IT department to have Unlimited PPE emails added to their safe list. All of our contact details are on the Contact Us page.

The course is taking too long to load

The electrical safety courses contain a lot of media and interactive exercises. As a result, they do require a reasonably fast and reliable internet connection. If you are using a wireless connection or satellite internet and run into issues with load times, you may want to consider switching to a wired connection. Ideally, the courses should be loaded on a DSL or faster connection.

To speed up the load times, Unlimited PPE uses a content distribution network. With servers hosting our content in hundreds of locations across the world, we are able to provide you with the closest possible server to connect to, which adds a great deal of performance to the course loading times.

My progress isn’t being saved

With a multitude of small configuration differences from computer to computer, on rare occasions there have been issues saving course progress. If you find this to be a problem, the best solution is to switch to Google Chrome as a web browser if possible. Chrome is a versatile browser that is known to have no issues with Unlimited PPE courses and can be downloaded for free here:   Download Google Chrome