Information
If the Windows 7 index cannot find a file in its search results that you know exists or not exists in an indexed location, then this will show you how to manually rebuild and update the index to have accurate search results from changes to the included locations since the last rebuild or update.
Note
The index will often run (indexing) automatically in the background to rebuild and update for changes made to the included index locations since the last index rebuild to increase search result accuracy.
By default, the indexing speed is reduced due to user activity. If the computer is running idle, then the indexing speed will be at full speed instead to finish indexing faster.
Warning
Rebuilding the index can take several hours, and searches might be incomplete until the index is fully rebuilt.
Here's How:
1. Open the Control Panel (All Items view), and double click on the Indexing Options icon.
2. Click on the advanced button. (See screenshot below)
3. If prompted by UAC, then click on Yes.
4. Click on the Rebuild button. (See screenshot below)
5. Click on OK. (See screenshot below)
6. After a moment, you will notice the index being rebuilt.
7. Once it is done Click on Close. (See screenshot below)
