Question: I am using Notepad++ on my Windows machine and by mistake I opened a 64MB file. Now my Notepad++ is stuck permanently and I am not able to use it.

Is there any configuration file which Notepad++ uses to maintain the list of opened files? If yes, then can I open that file and remove the entry of the 64MB file which I have opened in it?

Answer: 
**if your notepad++ have been installed.**

there must be in : 

%appdata%\Notepad++\session.xml

> 
> %appdata% means by default:
> 
> 
> * if you're using windows 7  
> 
> `C:\Users\{username}\AppData\Roaming`
> * if you're using windows xp or older version)  
> 
> `C:\Documents and Settings\{username}\Application Data`
> 
> 
> 

---

**if your notepad++ is portable**

there must be in : 

your notepad++ programs folder.

---

the file for notepad++ portable or notepad++ installed is same:

`session.xml`
One more thing to add here. The Old Session.xml file would have links to all the files that were open there (File Paths). They should match for the New PC. The User Name, Program Files folder (32bit or 64bit) etc should be the same. Else Notepad++ will open a blank session.