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Will the Windows 10 21H1 update stop File Explorer from freezing my PC?
You should pay close attention to the Windows 10 version 21H1 update if your system suffers from performance lags. Since the November 2019 Update, the integrated search platform in File Explorer has caused instability for many users. While the May 2020 Update restored the right-click function, it did not fully resolve resource spikes. Users reported that the “explorer.exe” process frequently freezes and drains memory. The cumulative update released on March 15, 2021, for the 21H1 preview finally patches this memory leak.
Fixing the “Computing Filters” Error
This update specifically targets a navigation bug found in Build 19043.899. Previously, clicking the arrow next to a column header to filter search results often failed. The menu would simply stall on the “Computing Filters” message or refuse to open entirely. Testing indicates this bug was also present in versions 20H2 and 2004. This patch ensures that your search filters display immediately upon request.
Stability for Mapped Network Drives
IT professionals and remote workers using mapped drives will notice improved stability. A specific defect caused the File Explorer window to hang for several minutes when reconnecting to a network. Microsoft has eliminated this delay, ensuring smoother access to shared network resources.
Pending Issues and Additional Features
While this update resolves major stability concerns, be advised that one rare bug remains unpatched: the File Explorer search box may still occasionally become unresponsive. Beyond these fixes, you can expect new configuration options for Windows Hello and general quality-of-life improvements in the upcoming release.