The latest raft of Windows 7 patches will bring one that rings home to Microsoft more often to check your copy is legit.
When looking up about security in Windows 8 / Windows 8.1.
Sometimes a non-blinking caret is displayed on upper left corner of Windows 7 Boot up screen. Why? This happens occasionally ( 1 in 10 boot-ups )
Operating System: Microsoft Windows 7 64-bit Ultimate version (English) with latest Windows Updates patches installed
The OS is newly installed on a clean HDD (newly formatted) via DVD-ROM (Clean Install).