You may want to move to an email client that works.
I have thousands of emails. Is it possible to search for certain text in the emails? Not the email subject or from who. But actual text in the email.
The "Find" options are there in WLM, but they sure don't work for me with text. However there is a work around that does work. Start the Windows Explorer. Navigate to C:\Users\your ID\Appdata\Local\Microsoft\Windows Live Mail. Then type what you're looking for in the search box in the upper right corner of the windows. That works.
As Bob points out, there're other email programs that you could consider. I've seen him recommend the free Thunderbird on numerous occasions. If you have Office, you could use Outlook. Both of those are very viable alternatives. I'm still using Windows Live Mail personally. While it was rather buggy a few years back, it's been stable for me for the last year, so I really have no qualms about it even though I can't find embedded text in my inbox with it. YMMV. Good luck.
Cameras that make great holiday gifts
Let them start the new year with a step up in photo and video quality from a phone.