Verecno is a malware classified as worm. Each time at Windows startup the **Line 0 (File"C:\Google\googleupdate.a3x")**error message window will appear because of this worm removed by anti-malware installed in the system. But malicious registry entry created by malware to auto-start & run itself on every reboot that entry still be present that’s why getting this error on system startup.
Windows Defender and MSE will detect this virus as Worm:Win32/Verecno.A
googleupdate.a3x is malicious file dropped by verecno malware. Read more about verecno malware removal and how to fix googleupdate error.
Whomever didn't understand the steps suggested here to fix, please watch Verecno malware removal videohttps://youtu.be/Hoj61zcn8L0 follow the same way to get rid of verecno malware and its malicious files. After that also have issue means new variant may on while now or else your system infected with other Trojan, rootkit typed advanced malware, let me know if you require further help in comment section.
Follow below steps to get rid of this error,
- Press Win+r, type regedit and enter.
- Now press ctrl+f, type googleupdate.lnk and hit find.
- Windows registry search and show detect entries under HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run and HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run path just delete it and hit find to found next.
- Similarly search with autoit3.exe**,windowsupdate.lnk,**googleupdate.a3x
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