Winsage
September 17, 2026
The search index on Windows 11 can contribute to storage bloat, with reported sizes varying significantly among users. The search index database, named Windows.db, is crucial for delivering quick search results and can grow dramatically, with some users experiencing sizes exceeding 200GB. A PowerShell script can be used to check the size of the Windows.db file. If the file size is unusually large, users can rebuild the search index through the Indexing Options in the Control Panel. Windows 11 has two indexing modes: Classic and Enhanced, which affect the size and number of indexed items. Classic mode indexes specific folders, while Enhanced mode indexes the entire PC. Excluding certain directories can help manage index size. Performance issues may arise on PCs with over 400,000 indexed items.