How to remove the reference of file in the Registry?

By tehmina.akhtar ·
When my windows (Vista Business edition) starts, it comes up with an error mesg saying

"Could not run or load C:\Users\Tina\AppData\Local\Temp\byvwx.exe specified in registry. Please make sure the file exists on your computer or remove the reference to it in the registry"

It?s been few weeks since I am getting this mesg. I have searched for the 'byvwx' file in the registry but am afraid to take any action as a small mistake can create lot more problems for me.

I am not sure that if that file is of any use to me, but I can see in the registry editor saying the Device name against that file is HP Officejet 5600. This reminds me of trying installing the Hp printer on to my pc few weeks back, which was not a success as the HP software didn't support Windows Vista.

I guess the problem arises from there. So in that case I will not need that file and the reference needs to be deleted from the registry. But HOW should I do that????
Thanks in Advance.

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Sounds like a registry trace of a removed virus ...

by OldER Mycroft In reply to How to remove the referen ...

I suggest you run CCleaner, running it recursively until the Registry Analyzer comes up clean three times in a row.

That should do it. :)

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The problem still persists.

by tehmina.akhtar In reply to Sounds like a registry tr ...

Hey mate, I have tried CCleaner the way you suggested to get rid of byvwx.exe file. But the message has not gone. It still shows me the same message on windows start-up. What should I do now??? Any other suggestion???


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Is it still the SAME error message or has it changed ? ...

by OldER Mycroft In reply to The problem still persist ...

Perhaps you should try True Blue's suggestion.

Try downloading the trial version of X-Cleaner.

It'll expire after 30 days but is the full product for that time period.

I'm surprised the error message is generated by a Registry entry - I'd have thought that would just timeout silently, without the error.

Is there a little checkbox option for 'Do not show this again'? That would at least stop it popping up.

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Nothing seems to be healing it :-(

by tehmina.akhtar In reply to Is it still the SAME erro ...

I did run CCleaner,Prevx CSI and X-Cleaner, but the error still there. It?s the same error on start-up. And the error window doesn?t have any option to set it to Not to show it again.

I have applied the True Blue?s suggestion, but nothing has changed. Would it be the case that I have to manually fix it in registry or is there any other option to go for?

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Also try this

by Jacky Howe In reply to How to remove the referen ...

VundoFix is a freeware removal tool for many of the known variants of Trojan.Vundo, Trojan.Conhook and other similar infections.

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If that suggestion did't work

by Jacky Howe In reply to How to remove the referen ...

you probably have more infections. Follow these steps.

From another PC download and install these two programs and copy the the installed folders to a USB Stick.

Restart the PC in Safe Mode and turn off System Restore and run Sophos when you have completed the 4 steps run Spybot.

Download Sophos and the latest IDE Files. Install it and extract the IDE files to the SAV32CLI folder. I normally create batch Files for the 4 runs. EG: Sav1.bat cd\SAV32CLI SAV32CLI -P=C:\SCANLOG.TXT

Running an information scan To run a scan for information only, so as to create a log, type the following at the command prompt: SAV32CLI -P=C:\SCANLOG.TXT This will create a log of infected files, but will not disinfect or delete any infected files. You can then copy the log to a floppy disk for printing or emailing. If you run SAV32CLI without the -P command line parameter, the information on viruses will be written only to the screen. Disinfecting infected files To disinfect infected items with SAV32CLI, use the '-di' command line parameter. If a file is infected more than once (either with different viruses, or several cases of the same virus), you might need to run multiple scans to disinfect all virus infections. Do not use the command line parameter '-remove' in the same scan as '-di', as you could delete a file which could have been cleaned. If the infection on the computer seems to be progressing rapidly, back up your data to CD or DVD before attempting disinfection. The '-di' command line parameter will disinfect infected boot sectors, some infected program (.exe) files, and infected documents (e.g. .doc, .xls). So, if your computer has been infected by a number of viruses, macro viruses, and worms, shut down the infected processes (either manually, or by using safe mode with command prompt), then run a series of scans to disinfect and remove these malicious programs. Make a log of all scans. First run SAV32CLI -DI -P=C:\SCANLOG1.TXT Make a note of the number of files disinfected. Run the scan again, with a different log name SAV32CLI -DI -P=C:\SCANLOG2.TXT If the number of files disinfected has decreased, run a third scan. If it has not, or the number is '0', remove all other virus files: SAV32CLI -REMOVE -P=C:\REMOVLOG.TXT The above scans will disinfect all files that can be disinfected, and remove the rest. During this process any infected documents will have been disinfected. Check the relevant virus analysis to find out if the virus involved could have corrupted data in the document. If you check the logs, you may well find that some worm or Trojan files were infected with a virus, so they were first disinfected, then removed.

Download Spybot - Search & Destroy 1.5.2 and install it. Update it.

Run this again.

VundoFix is a freeware removal tool for many of the known variants of Trojan.Vundo, Trojan.Conhook and other similar infections.

I don't dnow what antivirus that you are running but if you download and install AVG Free and then run it in Safe Mode it should tidy uo anything that is left over.

When you think that you are clean re-enable Systen Restore.

Just to be on the safe side when you finish do an online scan with Bitdefender.

These are the results from the last infected PC that I worked on. It also included Vundo AKA Winfixer. I also find it very interesting that when I did a Google for byvwx.exe the only reference was from Prevex. I had never heard of Prevex before Winfixer.

1 boot sector swept.
58533 files swept in 2 hours, 31 minutes and 14 seconds.
31219 viruses were discovered.

Virus 'Troj/Dropper-EM =311**
Virus 'Mal/Emogen-G' =5
Virus 'Mal/Heuri-E' =6
Virus 'Mal/Packer' =2
Virus 'Mal/Generic-A' =2
Virus 'Mal/ZlobJS-A' 3
Virus 'Troj/Agent-FXB' =2
Virus 'Mal/HckPk-A'=2
Virus 'Troj/Agent-GIX' =6

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