xbootmgr shows why boot is slow, but not why boot failed. the trace is still incomplete, but I can see that Avast is terrible slow (29s to start the service). primvirlaux hat the same slowdown with Avast. Do you use a Beta version? I can't information about version 6.0.1325 only 6.0.1289. Remove Avast and try other alternatives. Also set the FontCache3.0.0.0 service to "on demand" because this service causes 5s hang of the boot (you can see this in the picture, too). Do you need the Yota Access Service (Modems) service? if not, disable the service, too. this one takes 3s to start. The largest delay is caused by the Windows Search service. How large is your index? Try to rebuild the index and remove folders from the index. What I can also see is a not correctly trained Prefetcher (you see a lot of cache misses (black)): Run the optimization I linked in the first post. After doing the steps your Windows runs much faster. ok, I thought the same, but I can't prove this idea. controllers (IDE, SATA, SCSI) and their drivers can often cause crashes and failures. Nice to hear that you figured this out. Maybe other users read this too and find the cause of their issue