Win7 Repair tips

chkdsk

May have to boot the OS cd and choose repair, then boot to cmd prompt

bootrec /fixmbr

bootrec /fixboot

bootrec /rebuildbcd

Wireless products

For a great router that can work as an Wireless Access Point (WAP), and at AC1900 speed....consider
the D-Link DIR-880L.

For a Range Expander, we've used Amped's REA20.  Note it requires a medium to good strength signal to boost.