Thank you for using the Xerox forum.
You are correct that scanning can be very confusing to set up because of the many destinations and their unique login/password requirements. Even the common PC desktop is actually a specific folder with unique login & passwords required.
In your initial comment you indicated you have a simple setup and I understand you are looking for a simple solution so understanding the available options for your simple setup and identifying your desired choice is a good first step.
You can use the Xerox device as your scanner but will still need to identify other steps described in the following:
Cheryl O has created a Blog series on scanning, in order to try and simplify it HERE and you may consider taking the time to review it which can help identify what method you will use and clarify the confusing choices and acronyms used during following configuration instructions. TWAIN is a direct scan method that is very common for direct connected multifunction devices and may be a good choice.
Once you have made your choice and understand the terms used in that chosen configuration I would suggest that you review the following support site for detailed product specific solutions/instructions.
WorkCentre 7525/7530/7535/7545/7556 with built-in controller
In the support area there is a how to area in the right column and there is a choice to show E-mail, Fax or Scan topics then on the following page there is another selector to choose Scan.
There you will find detailed steps for the options and your chosen method.
Straight forward way- example: Enable Scan to USB or Print From a USB Thumb Drive Using CentreWare Internet Services (CWIS)
If this does not resolve your issue you may consider contacting our specific product support experts in your area which you can find here: http://www.xerox.com/about-xerox/contact-us/enus.html
We have just bought a second hand Xerox 7525, and have managed to get the printing set up and working OK.
However, the scanning set up is not working. We only have two PC's, and no server - so we do not require any of the fancy network abilities that this printer offers.
Could anyone tell me a straight forward way to scan directly to a PC? The number of options is simply overwhelming!