Don't worry about the monitor yet, assuming you're using a desktop or an external display. Sometimes after computer restart, service doesn't start. Laptop use to work normally, sometimes once a every day when i shutdown the laptop (battery full charged) and I tried to switch on my laptop after 3-4 hours but it does not respond. The purpose here is to remove as much hardware as possible while still maintaining your PC's ability to power on. and both have the same problem. It can work fine for maybe 3 or 4 days consecutively then it won't, other times it may not work for 3 or 4 days then suddenly works again. Reply to: My computer turns on, but won't boot up.....sometimes. Actually this is my neighbor's pc -- in fact, two of them exactly the same make on the hardwares (power supply, motherboard, casing, cpu, fan, memory, etc.) Start your computer with essential hardware only. If your computer starts normally with only essential hardware installed, proceed to Step 11. Recently I've been having issues getting my computer to boot properly. Sometimes it doesn't, though. Sometimes it would do the same thing, other times it would boot if I was lucky. If the computer won't on because of a power supply problem, the monitor certainly can't display anything from the computer. Sometimes I have to keep pushing the power button like a hundred times before the pc respond. If your computer still isn't displaying anything on your monitor, proceed to Step 12. laptop sometimes starts, sometimes doesnt ‎11-10 ... the laptop just wouldn't start. Various things help temporarily, like a new … Sometimes my keyboard does not work when I try to enter my password on the login screen, sometimes it does. It was running slowly and full of … It seems to be quite random. The last time I installed an OS was Dec 2010, when I put on Windows 7. I would hear the computer and fans start up, but would get a blank screen with no HDD activity light. For the past month or so, my computer has been behaving oddly. So, I'd just turn off the computer by pressing the power button and try to turn it on again. There does not seem to be any logic in this. Other times, more and more frequently, I sit in the hot Florida sun turning the key repeatedly, often for over five solid minutes. Sometimes it starts, sometimes it doesn't... - posted in Windows 7: I have a friends 64 bit Win 7 Compaq desktop machine here. Help Help PLEASE NOTE: Do not post advertisements, offensive materials, profanity, or personal attacks. I have set NLog logging and Event Logs on start of Main and OnStart methods and after that start after restart "failure" there are no logs neither on file system nor event logs in EventViewer\ApplicationLogs, as that methods haven't … Sometimes it starts right up. On some days it only takes a few attempts to power it up. Your monitor light will likely be amber/yellow if your computer has stopped sending information to it. strange behaviour. The capacitors look okay, but sometimes leaving the case open helps. and After 2 hours strugle with power button trying to switch on and then laptop get started. Laptop sometimes turns on, sometimes won't by ... but it said that it had to start up in recovery mode and the computer tried to revert itself to a previous, working state. It is a custom built rig built back in 2007, so it's probably on its last legs at this point. Anyway, whenever I try to turn on my computer (which was turned off using the "shut down" button from the start menu), it won't completely turn on. Sometimes I have to turn the key a few times before it starts. Recently my car has begun NOT starting - some of the time. Amber/Yellow if your computer starts normally with only essential hardware installed, proceed Step. To switch on and then laptop get started computer to boot properly key few. 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