"Recently I was annoyed by the randomly rebooting problems of my Windows 8 computer.I have tried everything I know to change it and with vain. All did not work and my pc still rebooting on its own." Isn't it frustrated when you encounter that phenomenon?I tried doing a rescue CD with Avira and also I tried using my Windows 7 CD to do a start-up repair but every time I put the CD inside the "CD-ROM" the computer automatically restarts when it gets to the "Windows Starting" Screen or, if I put the CD in the "CD-ROM" after I'm inside "At the desktop" the monitor shuts off and my PC goes into "Sleep Mode".Funny, but I never have encounter a problem like this before... Hope for you to find a solution to your problem HENRYA My build: Intel Core i5-4440, HIS Radeon R9 270, Corsair 200R - My 1st Build - budmonster's Saved Part List - PCPart Picker Just built my first PC, installed Windows 7.Instead, choose a more convenient day and time for the reboot so the update gets installed and your work doesn't get cut off. MORE: How to Snap 4 Windows at Once in Windows 10 In previous versions of Windows, there's a registry hack you could use to prevent your Windows Update from restarting your computer. Navigate to HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\Windows Update\AU If you don't see the Windows Update or the AU keys, you'll have to create them by following these steps. Right-click on Windows and go to New DWORD (32-bit) Value 5. Going forward, Windows won't automatically restart your computer after installing updates.

Lots of good advice already but one thing to try is quite simple!Insert the newly created USB drive to the keeping rebooting in Windows 8 computer.Restart the computer, press "F2" or "Delete" to get into BIOS setting menu. When you successfully get into Win PE environment, click Windows Boot Genius icon and run the program.If Windows 8 keeps restarting and never boot any longer, firstly, please make sure your computer is correctly connected with the power supply. Neither of them works, it is because the system files are damaged.To repair damaged system files, you can use Automatic Repair function which is the newly built-in features in Windows 8.When you turn on your computer, make sure that the fan in running in the very beginning. If your fan is still running, you must reinstall your windows operating system.If it is a virus that attacked your computer, your fan will continue running without anything on the screen. Please note, do not do this until you read my next article, "How to save your files from an unworking PC".If all those solutions didn't work, we humbly recommend you use Windows Boot Genius, which is the all-in-one Windows boot repair software that can help you fix all Windows boot issues including keeping booting, crashing, etc.Follow the tutorial below to learn to repair Windows 8 keeps rebooting computer.Sometimes Windows automatically downloads updates and then restarts your computer, even if you don't want it to at that moment. Change the dropdown from Automatic (recommended) to "Notify to schedule restart" Windows will now tell you when an automatic update requires a restart and ask you when you want to schedule the restart.There's a way to work around this, however, in Windows 10 and a fix for earlier versions of Windows. After downloading updates, Windows 10 automatically picks a time to restart your computer for you, based on when you tend to not use it (e.g., 3 am), but that would depend on your computer being on at that time. You'll see the option to select the time and day (up to 6 days forward) in Windows Update like below.Double-click on the DWORD and change the 0 value to 1. Now you just can reboot at a more convenient time for you.Last night, I turned off my computer like normal and nothing out of the ordinary happened, but this morning I try to boot up the comp and it tells me the the computer was shut down incorrectly and to choose and option for starting windows (safe mode, last good configuration, etc.). First if you have an old win 98 or ME start up disk pop it in the floppy and reset the bios to start with that.no blue screen or anything to identify the error... To test for and clean an infection, visit the following site and follow the instructions; [Rescue CD] Tutorial for Avira Rescue CD - Tipps und Tricks - Avira Support Forum HTH Computer type PC/Desktop System Manufacturer/Model Number Custom Built OS Windows 7 Professional x64 CPU Intel i5 quad processor Motherboard DP67BG Memory 16 GB Graphics Card Radeon HD 5770 Sound Card Realtek High Definition Audio Monitor(s) Displays Samsung Sync Master Screen Resolution 1920X1080 Keyboard MS Wireless Mouse MS Optical Wired PSU Corsair GS800 Case Tower (Generic) Cooling 3 Internal Fans Hard Drives WD 2TB (SATA Internal) WD 1TB (USB External) Internet Speed 54 mbps Antivirus Emsisoft Browser IE-Version 9, Palemoon-Version 24.2.0 Thank You for replying Sir George The computer that I'm having the problem with is not connected to the internet but, it can be a virus since I'm always transporting files in between my computers... To alleviate our issue, we restarted in safe mode and restored back to 9/27/2012. Hello Henry A, I did a system restore back to 8/31/12 and now I can at least get into the PC every time I turn it on...I tried going into system properties "start-up and recovery settings" and I unchecked "automatically restart" on system failure, but that didn't work... Computer type PC/Desktop System Manufacturer/Model Number home built OS windows 7 home permium 64 bits CPU i7 950 Motherboard asus sabetooth x58 Memory dominator memory 16gigs Graphics Card asus gtx680 dcii oc, Sound Card asus xonar phoebus ,sennheiser pro headphones Monitor(s) Displays Ben Q XL2420T 24" Class Widescreen LED Backlit Gaming Monito Keyboard CORSAIR k70 rgb Mouse corsair m65 rgb PSU corsair ax850 watt psu Case tk v51 Cooling cpu h100i gtx case 4x140 riing fans 1x120 riing fan Hard Drives "Intel SSD 520 Series (240GB, 2.5in SATA 6Gb/s, 25nm, MLC/ Samsung evo 1tb ssd 2X wd 1tb 64mb cash sata 6oo/6g hdd Internet Speed 120 down 15.0 up Antivirus webroot/mwb Browser IE /crome Yes, but it restarts in the middle of it... I also tried removing 1 memory stick and checking the fans inside and the computer temperature and everything seems to be in order... Now my problem is that the PC goes into "sleep mode" after a certain time using it.