I installed a kind of ebook reader to read specific books which I download from a website with specific file format ! it isn't so important ! but the important part is this :

I must enter a username and password to active this software ! and i enterd a wrong username and submited ! after that software locked ,the wrong username is constant and software doesn't allow me to change username Not at all :(

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I thoght if i uninstall it, its history would be deleted and i can enter my new correct user information, I used revo uninstaller, you uninstaller and several other softwares advance uninstall mode to uninstall it compeletly , but after uninstalling i rebooterd pc and I installed it again , unfortunately its username is the previous wrong and unchangeable username too :(

I dont know how can i return the software to the first day ? i dont want to change windows !
how it can find wrong stored ? i delete all its information wwhile uninstalling , with revo unistaller pro ! please help me return the software to the first day !

windows 7 Ultimate

  • 1
    The simplest solution is to contact the author of the program itself and request assistance. There are so many ways the author of the program could have done something its not possible to list all of them.
    – Ramhound
    Dec 31, 2013 at 16:13
  • Try using ProcMon to figure out where it's reading that info from. Dec 31, 2013 at 16:29

2 Answers 2


Many software will put entries into Registry, it is likely that you need to find and delete those entries in order to start fresh.

  • 1
    Search the registry for the wrong username you entered and either correct it or just delete it.
    – cybernard
    Dec 31, 2013 at 17:08

When you used Revo did you choose the most advanced "uninstall mode"? If not you will need to go back and install/uninstall again this time selecting the advanced option.

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