Occur Error 1324 and Error 1603 when I install Sage 50 acconting 2013 student version. How to solve it?

I have seen lots of topic about Error 1324 and Error 1603 but I still cannot solve this problem.

I saw some method is:

1. Click Start, and then click Run. In the Open box, type regedit, and then click OK. 2. On the Edit menu, click Find. 3. In the Find What box, type the character string reported in the 1324 error message, and then click Find Next. 4. If you find the problematic string, make any necessary changes, and then press F3 to find the next occurrence. 5. Repeat step 4 until you locate and change all incorrect references. 6. On the Registry menu, click Exit

However, I am not sure what should I type in step 3. I tried to type some words about the error 1324 and error 1603 messages and find but I didn't find any thing. what should I do to install this software?