| Cause | Description | |-------|-------------| | | A Windows cumulative update overwrites modified system files that StartIsBack hooks into (e.g., explorerframe.dll , twinui.pri ). | | Corrupt icon cache | The IconCache.db file becomes damaged, causing the system to display generic fallback icons. | | Missing Segoe UI Symbol font | The sad face character (U+2639) may appear if the required font for UI glyphs is missing or corrupted. | | SFC / DISM errors | Underlying Windows component store corruption prevents StartIsBack from patching resources correctly. |
: StartIsBack offers a free trial period. Once this time elapses, the application enters a "restricted" mode marked by the sad face. Activation Failure startisback sad face