Windows 7 Won't Start Up, Startup Repair Faliure On Every Boot Up?

with my custom built desktop. My custom built has been acting up like mad only a month after creation. It worked perfectly at first, but then I suddenly found that half of my services were disabled randomly. As well, my computer kept connecting with limited access to my household wireless connection, quite simply meaning I couldn't connect to the internet.Eventually, after throwing all the solutions I could find on the net at it (sfc/scannow, system restore, enabling the systems manually through and elevated control panel and even upgrade installs (with the original OEM system builders disc), I gave up and did a complete reinstall, wiping everything on my hard drive and starting again.Unlike the upgrade install I attempted, this actually worked and my computer worked perfectly...until I updated windows. After downloading the 53 updates windows update thought I needed, when I booted up my computer the next time, the internet stopped working again, with half of my services stopped (including Diagnostics Repair).Now every time I boot up my computer, I come to a Startup Repair screen that fails every time.Here is the message I get: Startup Repair cannot repair this computer automaticallyProblem signature:Problem Event Name:StartupRepairOfflineProblem Signature 01:6.1.7600.16385Problem Signature 02: 6.1.7600.16385Problem Signature 03: unknownProblem Signature 04: 21200686Problem Signature 05: AutoFailoverProblem Signature 06: 3