Windows defender won't open. Shows error message

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adeleke5140

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Sep 11, 2018
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I've got a pc running Windows 8.1
64-bit, 4gb of ram. Whenever I open Windows defender, an error message pops up. I need help.
I've attached an image. IMG_20181009_165152.jpg
 

DaveA

David
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Google 0x80073b01 and you will find a MX Fixit link
 

managed

Allan
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Are you running any other security type software apart from Windows Defender, such as an Anti-Virus or Anti-Malware program, or a security suite ?
 

managed

Allan
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Try disabling Smadav and restarting the computer and see if you can update Windows Defender then.
 

adeleke5140

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Sep 11, 2018
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19
Try disabling Smadav and restarting the computer and see if you can update Windows Defender then.
Okay,I'll do that. in case i restart the computer and it doesn't still work, what do I do? I've tried using the software REGISTRY RECYCLER, nothing happened.
 

managed

Allan
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Try it first, if it doesn't help let me know in your next post here.

Please don't use Registry cleaners/optimizers they can do more harm than good.
 

managed

Allan
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You're welcome. It might be best to restore the backup before disabling Smadav.
What software did you use to make the backup ?
 

adeleke5140

Thread Starter
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Sep 11, 2018
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Registry recycler was the software I used to clean it and it made backups before the cleaning. I restored the backup, deactivated smadav, restarted the system but nothing. It's still showing the same message. What do I do?
 
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