Windows 10 keeps restarting or won’t start normally….this page attempts to provide a solution to the most common startup problems.

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Windows 10 stuck, inaccessible, or keeps restarting

BSOD

Windows 10 restarts in a loop, or does not start at all …. everything was fine but following updates, the machine restarts in a loop without ever reaching the welcome screen, or the system is frozen or inaccessible for any other reason, in particular a systematic blue screen.

ENGLISH VERSION: Some update failed, now the computer is in an endless reboot loop …

The site SauveMonPC will help you! Follow the instructions below!

If you are lost or in a panic, call us without fear:

non-surcharged call, free diagnosis and advice, free estimate, possibility of remote assistance via your smartphone… 2 remote computer troubleshooting sites SauveMonPC and HelpMyPC and for trust look at the reviews of our customers.

If the case is severe and you want our commitment to restart your PC, we have a risk-free package.

If you’re more of an expert, you should be fine with these instructions and no less than 11 ways to get there.

DO NOT USE the reset this PC option now! It loses all your settings and apps. Try these solutions.

Go to the General case section unless you are in one of these special cases

Special case 1: blue screen with message like C:\windows\system32\drivers\<a directory, a file name> missing or damaged: go directly to general case >step 8.

Special case 2: Windows 10 restarts in a loop on diagnosis and repair, even if we repair, restore the system, etc …

If you have a laptop, first try this maneuver, and if that doesn’t work, continue

resolution_problemes_windows_10

In “Troubleshooting”, try “Reboot System Tool” again, then continue to windows 10. Probably at this point it won’t work, continue.

Under “Troubleshooting”, choose “advanced options”

Then select “Command Prompt”
options-advanced-recovery_windows-10
When prompted, enter the command bcdedit which should display a screen like this.

Under “Windows Boot Loader”, note the identifier, which is often {current} or {default}, but can be {something else}. In the following, we will assume that we have {current} , but adapt to your case.

Enter the following command which will disable the recovery loop (replacing {current} if necessary)

bcdedit /set {current} recoveryenabled No

Enter the bcdedit command again with no parameters to verify that recoveryenabled has changed to no in the Windows bootloader list. If not, you made a typo, try again.

Enter the command EXIT, then Shut down your PC, and then restart.

If it doesn’t restart right away, you should now be able to make repairs, and you’ll probably be in special case 1 at the top of this page.

When you restart windows, don’t forget to enter command line and admin mode

bcdedit /set {current} recoveryenabled Yes

If the PC still does not start, return to the troubleshooting screen.

Go to the general case.

General case

Unable to repair the system, abnormal startup, black or blue screen, windows 10 restarts in a loop …

If you have a laptop, first try this maneuver, and if that doesn’t work, continue

Do I need to reset the PC? Nope ! Before you lose all your settings and apps, try the solutions below.

1/ Hard disk mode
Go to the BIOS, which is most often obtained by pressing an F2, F9, F10, Del or Esc key when the logo of your pc appears and before the boot windows is triggered: see the user manual of your pc or google and search for bios followed by the complete model of your pc, or consult this page.

If your pc is new, and you couldn’t find any way to access the BIOS, it may have an EFI BIOS that can only be accessed from Windows repair mode…go to step 2.

>

search for “SATA CONFIGURATION”
Change the option between IDE / AHCI / RAID.
If the system does not boot on any of the options, proceed to the next.
If the system boots on one of the options is that the BIOS had lost this choice: check the date and time of the computer.
If the date and time are wrong, the backup battery (often a CR 2032) is to be replaced: see the documentation.

2/ Getting into system repair
As Windows 10 restarts in a loop, not so easy, unless it goes into automatic repair mode.
If you don’t have the hand, the way is to turn off the machine by keeping the power button pressed when the logo of the brand or the bios appears.
Turn on, and turn off again in the same way after the disappearance of the logo (black screen).
After 3 attempts (sometimes a little more), the Windows logo with a line signaling the entry into repair should appear: then let it start.
Some machines allow a less rustic access (for example Sony with an Assist button), see instructions.

It may also be really impossible to reach the repair mode, in this case

  • open the BIOS (see step 1/)
  • set BOOT order to have USB or DVD first (see next line)
  • insert installation/repair/recovery DVD or USB key (if you don’t have it see here)
  • exit saving changes > you boot on the installation media, it will take a few minutes
  • On the installation screen, please DO NOT INSTALL: choose the link “repair this pc” at the bottom left
  • Continue below.

3/ Check the hard disk

Under “Troubleshooting” choose “advanced options”
resolution_problemes_windows_10
Then select “Command Prompt”
options-recovery- advanced_windows-10
When you have the prompt, you will have to find where is windows
Enter C:
Enter DIR
In the list displayed, see if Windows is displayed.
If not, start again with D: E: F: …. followed by DIR each time until you find Windows in the list
Note the corresponding letter
Enter X:
enter this command: CHKDSK /F C: or CHKDSK /F [the letter you found]: for example CHKDSK /F F:
At the end of the check, enter the command EXIT
Try to restart normally (remove the usb key or the dvd, turn off the pc, turn it back on).
If the system is not repaired, repeat all the same except the command CHKDSK /F /R [the letter you found]: for example CHKDSK /F /R C:

You can do this command several times until you get the message that no error was found (error 50 no transfer is normal).

4/ Try booting in safe mode

Under “Troubleshooting” choose “advanced options”
resolution_problemes_windows_10
Then select “Settings”
options-recovery-advanced_windows-10
The PC restarts and presents a list
In the displayed list, preferably choose 4, safe mode.

If the PC does not start, go to step 5.

If the PC boots, it may be completing an update or similar operation. Also go to device manager and uninstall anything new or suspicious. Do an SFC /scannow in a command prompt. Reboot normally.

5/ Go back to a previous version
You should go back to “Troubleshooting”, “advanced options”, if not, repeat the previous maneuvers.
Now select “System Restore”
options-advanced-recovery_windows-10
If you have restore points, come back before the date when the loop restart occurred
Run, let go, and then end here

If you don’t have restore points, it’s because system protection was not activated in Windows 10: as soon as you’re there again, activate it!

On some machines, the option “Downgrade to the previous version” is offered, as in the image above.
If this option exists, click on it, leave it, and then finish here

If this option does not exist, continue below.

6/ Restoring the last known good configuration
This possibility of older versions of Windows has become more complex, but here’s how to do it.
If you don’t know how to do it one of the steps, the rest is too risky for you, so it’s better to contact us.
You can also watch this video< /span>.

– Insert the Windows repair or installation DVD or USB key (if you don’t have one see this page)
– Boot from this medium

– Skip the Windows language selection screen, DO NOT INSTALL, then choose “Repair this PC”
– Choose an option > Troubleshooting > advanced options > Command Prompt

The system should display a command window with X:\ followed by a path.
We will first neutralize the entire system registry with the following commands (if Windows is not on C:\ change the letter to match the drive where windows is)

CD C:\Windows\System32\config\regback
DIR

If the system displays 5 files of non-zero size, we can continue.
If the size is 0, go to step 7.

CD ..
ren DEFAULT DEFAULT.old
ren SAM SAM.old
ren SECURITY SECURITY.old
ren SOFTWARE SOFTWARE.old
ren SYSTEM SYSTEM. old

We will now restore the last working register with these commands

CD RegBack
system must show – system must show: C:\Windows\System32\config\RegBack\

now copy the entire registry

copy *.* ..

The system should display “5 files copied”
If not, try again, be careful to respect the syntax, space and dots…

The only thing left to do is EXIT, then “exit and go to Windows”, or restart.

If the problem is not solved, it is better to restore the most recent registry before trying anything else.
To do this, restart again on the repair medium > command prompt then do:

CD C:\Windows\System32\config
del DEFAULT
del SAM
del SECURITY
del SOFTWARE
del SYSTEM

ren DEFAULT.old DEFAULT
ren SAM.old SAM
ren SECURITY.old SECURITY
ren SOFTWARE.old SOFTWARE
ren SYSTEM.old SYSTEM

7/ Repair the boot, only if the pc does not boot (no windows logo), by following these instructions.

If the PC boots (presence of Windows logo) continue below.

8/ Boot but still on blue screen

In that case, read the message.

8.1 If it says something like C:\windows\system32\drivers\<a directory, filename> go to another pc running on the same version of windows and copy the file indicated in <a directory, a file name> on a USB key.

On the blue screen PC, in repair mode / command prompt, put the USB key, find its letter by typing D: then DIR, E: then DIR until you find the file you copied. Then recopy the file in place of C:\windows\system32\drivers\<a directory, a file name>.

Example

c:\windows\system32\drivers\wd\wdfilter.sys is defective.
On a healthy pc, you copy wdfilter.sys from a usb key.
Put the key on the damaged PC, then go to repair command prompt.
Assume the key mounts to E:, you should have typed dir and found wdfilter.sys.
Now type
c:
cd c:\windows\system32\drivers\wd
copy e:\wdfilter.sys overwriting the existing file
exit

restart

8.2 if there is not a message about a damaged or not found file, but rather a driver error or critical process or equivalent:

Return to troubleshooting mode

Choose an option > Troubleshooting > advanced options > Command Prompt

The system should display a command window with X:\ followed by a path.

Find the disk containing windows by typing C: then dir, D: then DIR until you find the windows directory in the list.

Locate the letter (in the following we assume it is C:, but change according to what you find), then type x: to return

Then enter the command (replace c: if necessary)

sfc /scannow /offbootdir=c:\ /offwindir=c:\windows

If the answer is “no integrity violation”, you can stop there.
If the answer is that everything has been fixed, you can stop there.
If the answer is that files are damaged, but not all repaired, you will continue:

9/ Nothing has worked so far

Return to troubleshooting mode

windows 10 troubleshooting

Choose Reset this PC

Be careful to choose the option that allows you to keep all your files!

You will have to redo the windows settings, and reinstall your applications, but all your files will be there.

Continue

10/ Even the system reset does not succeed

If after all this Windows 10 restarts in a loop or not at all;

  • if you have a historical file backup
    • return to troubleshooting mode
    • Choose Reset this PC
    • choose the option to delete everything, applications and files
    • Then recover files newer than the system backup using File History Backup
  • if you don’t have a historical file backup
    • you are going to extract the hard drive from your PC in order to recover your data using a USB adapter or dock (available almost everywhere, search on the internet) which will allow you to connect your drive to another computer and copy your files on another medium (second USB disk for example)
    • mount the disk in your PC
    • return to troubleshooting mode
    • Choose Reset this PC
    • choose the option to delete everything, applications and files
    • then recover your files from the media you used to copy them.

11/ Even the total reset does not succeed

In this case,

(in the following we will talk about the installation media that you had to create, if you did not have one, by following the link given earlier in this page. If you are in the case of a specific recovery as for Microsoft Surface, the instructions below may not apply, so follow those given by your specific recovery).

  • if you have system backup and file history backup
    • using installation media
      • choose ‘repair this PC’ when on the install screen
      • Troubleshooting > Advanced Options > System image recovery.
    • Then recover files newer than the system backup using File History Backup
  • if you don’t have a system backup but have a file history backup
    • using installation media
      • delete the partition containing the faulty windows
      • reinstall a new windows 10 (same version as the one you had so that it reactivates automatically) on the free space corresponding to the old partition
      • recover your files using File History Backup
  • if you have a system backup but no file history backup
    • you are going to extract the hard drive from your PC in order to recover your data using a USB adapter or dock (available almost everywhere, search on the internet) which will allow you to connect your drive to another computer and copy your files on another medium (second USB disk for example)
    • mount your disk in your PC
    • using installation media
      • choose ‘repair this PC’ when on the install screen
      • Troubleshooting > Advanced Options > System image recovery.
    • retrieve files newer than the system backup from the media you used to copy them to.
  • If you have no backup
    • you are going to extract the hard drive from your PC in order to recover your data using a USB adapter or dock (available almost everywhere, search on the internet) which will allow you to connect your drive to another computer and copy your files on another medium (second USB disk for example)
    • take the opportunity to delete all the partitions of your original disk with the disk manager
    • mount this blank disk in your PC
    • using the installation media, reinstall a new windows 10 (same version as the one you had so that it re-activates automatically)
    • recover your files from the media you used to copy them.

If you’ve come this far, it’s because you really want to solve your computer problems.
Thank you for trusting me and above all I hope you have solved your problems!?

If you want to go further, I have created tutorials to assist you in the Management, Performance and Security of your IT.
All my tutorials are free via your CPF.

It’s on this page. Or else Call me on 01 89 16 48 04 and we’ll look at it together. I always have a solution for your computer problems 😊


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