When I try to open Lotus Notes, cannot open it. The sign says "Unable to open Name and Address Book (names.nsf), due to error “File does not exist” Locations cannot be used until the problem has been corrected.
I do not know how to solve the problem?
Subject: Lotus Notes 7
Follow the given steps to resolve the error, sometimes it can be ineffective, then you may visit topics dedicated to Lotus Notes issues, where users can share their knowledge about methods of solving such troubleshttps://www.openfiletool.com/nsfopen.html NSF Open File Tool – ultimate solution, uses when nothing helps
Restore the data from recent database backup
R fixup -f", then “compact -c -i” command to recover the corrupt database.
Note: If the inbuilt Lotus repair doesn’t help you to repair the corrupt database then, you require some alternative Lotus Notes Recovery software to repair and recover the corrupt database items.
Subject: Can you point to any 3rd party reviews of your product proving it works?
I’ve seen spam posts before for this product, where new users post questions and then new users post responses suggesting this product.
I have to say I am very suspicious, I have never seen a 3rd party product able to recover NSF data better than the built in Lotus tools. If you can point to 3rd party comparison reviews of your products, or real people who can review it and give feedback, I’m calling this post out as spam. The fact that your website also calls out NSF files and MPP files on the same line, also comes across suspicious.
Subject: RE: Can you point to any 3rd party reviews of your product proving it works?
Especially suspicious since both new users have commonalities between them. Not only are the user names all in lower case (what programmer is not OCD about creating properly cased usernames?), it is also obvious that neither have English as their native language. No, i am not saying that everyone that does not write near perfect English is a spammer. 
Just that in this case I believe it is the same person, even if the sample text is a little bit too short to be sure.
Subject: RE: Can you point to any 3rd party reviews of your product proving it works?
I have a hard time imagining a tool that recovers an NSF file in the case where the error message says “File does not exist”.
-rich
Subject: Lotus Notes 7
You need the file names.nsf in your data directory. Check the ini file to verify the location of the data directory then find your name.nsf file and put it into that directory.
If you don’t have names.nsf, uninstall Notes then do a clean re-install and setup.
I’m assuming you’re new to Notes and haven’t run it before.
If you’ve successfully been running Notes, then something got borked so go find names.nsf and put it back.
It none of this helps, can you provide more detailed information about your setup and situation?
Subject: RE: Lotus Notes 7
Start by figuring out what notes.ini file you are using.
The easiiest way is by examining the properties of the shortcut that you use to launch Notes. You should find the location of the notes.ini file referenced in the command line. Normally the notes.ini would be in the same folder as nlnotes.exe, but it doesn’t have to be.
If you’re not using a shortcut to launch, and if there isn’t a notes.ini file in your Notes program folder, my guess is that you are dealing with an incomplete or mangled installation of Notes. You’ll probably be better off reinstalling. If that’s not the case, then first search for all notes.ini files on your machine. If there’s more than one, look at your system’s PATH environment variable and find the first notes.ini that occurs in a folder that’s listed on the PATH.
When you’ve found the notes.ini file, as Doug said, the line that begins with DIRECTORY= points to the folder where your names.nsf should be.