Startup repair windows 10

Hi Philip. I'm Greg, an installation specialist and 8 year Windows MVP, here to help you.

I will give you steps to access the Repair Mode to try all repairs to get Windows started, and if not to do the automated Reset or the superior Clean Install after rescuing your files. These steps don't cover possible hardware failure which might become apparent while performing the steps, so please report back as you go:

1) Use whichever method works in this link to access Advanced Startup Options: https://www.tenforums.com/tutorials/2294-advanc.... Easiest may be to restart PC three times to trigger the Startup Options.

2) If none of the other methods work it may be necessary to Create Windows 10 Installation Media on another PC: http://windows.microsoft.com/en-us/windows-10/m...

Insert media, boot it by powering up PC while pressing the BIOS Boot Menu Key: https://www.sysnative.com/forums/hardware-tutor...

Choose the boot device as a UEFI device if offered, then on second screen choose Repair Your Computer. If the media won't boot you may need to enter BIOS/UEFI Setup (pressing key given in chart in link above) to turn off Fast Boot or Fast Startup first.

3) In the Advanced Troubleshooting options try to System Restore to a point before the problems began, Startup Repair, then if necessary from Startup Settings try to get into Safe Mode with Networking, or lastly Safe Mode.

If Startup Settings aren't available you can force Safe Mode from Command Prompt using the command to unhide F8 Advanced Startup Options here: https://www.digitalcitizen.life/4-ways-boot-saf.... Try Last Known Good Configuration and then Safe Mode with Networking.

4) From Safe Mode w/Networking work through the Windows 10 Install Integrity Checklist to make sure the install is set up correctly, optimized for best performance, and any needed repairs get donehttp://answers.microsoft.com/en-us/windows/wiki/windows_10-performance/windows-10-performance-and-install-integrity/75529fd4-fac7-4653-893a-dd8cd4b4db00: If it doesn’t fix Windows enough to start it normally, then try a Windows 10 Refresh: https://www.howtogeek.com/265054/how-to-easily-...

Update your drivers from the PC's Support Downloads web page. Compare the latest drivers with the ones presently installed in Device Manager reached by right clicking the Start Menu. Make sure you have the latest BIOS, Chipset, Display (Video), Sound, USB3, Bluetooth, Network and all other drivers, or else download and install the latest now.

5) If Safe Mode doesn’t work or help stabilize things then return to Advanced Troubleshoot options. Next try Command Prompt to run through Windows 10 Install Integrity Checklist (above link) repair commands including sfc /scannow, DISM, a full Disk Check, or return to Troubleshoot options to Reset Your Windows 10 PC.

6) Better yet do the vastly superior Clean Install Windows 10 following the steps in this link to delete all partitions down to Unallocated Space to get it cleanest: http://answers.microsoft.com/en-us/windows/wiki...

7) There is a step to Rescue Files from the booted media Command Prompt first: http://answers.microsoft.com/en-us/windows/wiki...

These steps are excerpted from my tutorial that compiles everything possible for Troubleshooting Windows 10 Failure to Start: http://answers.microsoft.com/en-us/windows/wiki.... You can continue with the other steps there.

I hope this helps. Feel free to ask back any questions and let us know how it goes. I will keep working with you until it's resolved.

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After pressing the f2 button and inserting the code, what should i do?

my laptop's model is Acer (Aspire 5742ZG)

Hi Philip.

What step are you referring to? The BIOS Boot Menu key on Acer is F12.

What code? Where are you asked to insert a code?

Hi Philip.

What step are you referring to? The BIOS Boot Menu key on Acer is F12.

What code? Where are you asked to insert a code?

What should I do at the BIOS Boot Menu?

Did you prepare the media following the step exactly?

If so then boot the media as a UEFI device if offered and follow the rest of the steps closely, asking back any other questions you have.

In addition to the steps, note that the blue links are illustrated tutorials for how to perform them.

Sorry but i can't see the UEFI

You are looking at the BIOS Boot Priority listings in BIOS Setup. It doesn't look like you have a UEFI system, but I'd need to see the Advanced settings to know for sure.

I also don't see the flash stick listed as it should be if it was formatted correctly using only the Media Creation Tool. Did you do this? Yes or No??

As I've now said twice you need to boot the installation media from the BIOS Boot menu key which on Acer is F12, not from the F2 BIOS boot priority menu.

If you are using a bootable flash stick then it must be made from Media Creation Tool. It should be listed as USB HDD or Flash, and it should have more information about it listed than it does now. But you can try choosing USB HDD to see if it boots, but choose it from the BIOS Boot menu key, not the screen you're showing in the screenshot.

I haven't done this. How i can do this? : I also don't see the flash stick listed as it should be if it was formatted correctly using only the Media Creation Tool. Did you do this? Yes or No?? 

I wrote out steps for you. Many are illustrated by tutorials in the Blue Links. Go back to the steps I wrote out and explain what you do not understand.