I'm using DNN 07.04.00 (353)

Admin Search does not reindex the site. I read a lot online and did delete the content of AppData>Search , deleted the Search Result module from its page, Deleted the module from the recycle bin, Added the search result module on the page, reindexed .

Reindex takes lass that a second.

Now, when I search for any content, I get "No Results Found"

the App data shows only the following files:

_4bez_1.del
_4bf0.cfs
segments_3vwp (I couldn't delete this file in the first step.)

Schedule History shows:

Search: Site Crawler

Starting. Content change start time 4/27/2016 12:32 PM
EXCEPTION: Lock obtain timed out: NativeFSLock@D:\Hosting\5722991\html\App_Data\Search\write.lock

Any idea, how can i fix this issue.