Users of Windows 8
Press the Windows key.
Click Windows Explorer, and then click Computer.
Click View and then click Options.
Select View, and then click Show hidden files and folders.
Look for the .dat files in the following directory: C: \ Users \% username% \ AppData \ Local% or LocalLow% \ Google \ GoogleEarth.
To move files to the Recycle Bin, click the right mouse button in dbCache.dat and dbCache.dat.index files, select Delete, and then click Yes. These files will be recreated the next time you log into Google Earth.
Search the unified_cache_leveldb_leveldb2 folder.
Click on it with the right mouse button, select Delete, and then select Yes to move it to the Recycle Bin.
If clearing your cache does not resolve the problem, you can try turning off Atmosphere.