I have an HTPC with an Asus E45M1-M PRO motherboard, with Windows 7 installed. I prefer to sleep/resume this PC for minimum lead time when using it. However, currently if I resume from sleep on this PC, the desktop will show up as normal, and will look ok until I try to interact with anything (click the start button or a window). Windows does not respond to these clicks. If I mouse over the task bar, the loading cursor is usually shown. Keyboard shortcuts don't work either - no response to Ctrl-Alt-Delete. Eventually (after about 3 minutes), the system "catches up" and responds to everything that I've done while it was locked up. This problem has been occurring since the initial OS install.
Things I have already tried:
- updated graphics and chipset drivers (including LAN drivers from the Realtek website).
- this system also uses a remote control system from Soundgraph using the iMon software. I have tried disconnecting the device from the motherboard and uninstalling the software.
- tried disconnecting the network cable to determine if it was hanging while resolving its address.
- BIOS is up to date.
- Hybrid sleep has been turned off and USB selective suspend setting is disabled.
- changing display from HDMI (TV) to D-Sub (monitor).
- ran the Windows memory diagnostics (I vaguely recall running Memtest86+ back when I first encountered the issue, but I may need to run it again to be sure).
- running a "clean boot" using msconfig.
- stress tested the CPU for three hours using Prime95 [15/10/2013]
- disabled turning off hard disks in power settings [24/10/2013]
- disabled hibernation and performed an SFC scan per Dave Rook's answer [24/10/2013]
- ran a full hard disk scan [24/10/2013]
There are a number of events in the event log: "A timeout (30000 milliseconds) was reached while waiting for a transaction response from the XXX service." With a variety of different services, so I suspect that it's another symptom of the hang rather than an indication of the cause.
What further steps can I take to diagnose and fix this issue?