Windows 10: I can't enable my windows defender and other options on there.

Hello, i cannot enable my Windows defender anti-virus software and other options.

:)

 

How does Windows boot to advanced recovery option e.g. command prompt?

- that gives me a 454 'Unexpected error' This tells me that the BCD is partially corrupted.

The commands: shutdown.exe /r /o /f /t 00
or: %SystemRoot%\System32\Cmd.exe /c reagentc /boottore&shutdown /r /f /t 00
should boot into Recovery if everything is configured correctly.
FYI, If Windows is configured correctly:

1. If Reagentc is disabled, you still can get into Recovery but with limited options.
2. If Reagentc is enabled, you'll get all options.
3. If you boot Windows using Recovery USB stick, You'll get into Recovery with couple of options missing.

Here's my suggestion if you want to try:
OPTION 1: Will save the trouble of re-install Windows.

1. Download the image of my first 3 partitions (450MB Recovery, 100 MB EFI partition, and 16MB unformatted primary)
   EFI_Boot-00-00.7z - Google Drive
2. Run Macrium and restore the image from step 1, overwriting your existing 1st three partitions, leaving C alone.
3. Delete the 490MB Recovery partition.
4. From Macrium, run fix boot problems.
5. Reboot. Open Admin command prompt then run Reagentc /info to make sure that it is enabled. If not, enable it.
   if failed to enable, reboot and try again.

OPTION 2: Assuming you've already had Windows backup with Macrium.

1. Wipe out the first 5 parttiions. (450MB, 100MB, 16MB, C Drive, 480MB)
2. Fresh install Windows 10
3. Restore C drive from backup image, run fix boot problems
4. repeat step 5 from OPTION 1 above.

 

Cannot activate Windows Defender

On my laptop "Toshiba Satellite L455" I did upgradation to W-10 from W-7 (original).

There is no antivirus program on this PC.

I wanted Windows Defender to run. But it says that it is switched off.

Want to activate it.

On opening Windows defender, there is no option to activate it.

In step 2 of your suggestion, it says:

"Windows could not start the Windows Defender Network Inspection Service on local computer.

Error 1068: The dependency service or group failed to start"

Can you pl give a method to activate the defender?

 

Windows defender is not going to enable manually....

Hi,

Windows Defender Antivirus works help protect your device by scanning for malicious or unwanted software and uses real-time protection to scan everything you download or run on your device. To efficiently assist you, we'd like to gather more information:

• What is the exact error message you received?
• Are you able to use Windows Defender before?

Meanwhile, we suggest that you follow the steps in this article on how to turn on/off Windows Defender.

Let us know if you need further assistance.