Explorer crashes randomly on windows 7 64 bit. Have to restart the computer to correct.

Hi, I read the related discussions but don't know what the problem is or how to diagnose.

Recently, windows Explorer crashes and the only solution is to completely restart my computer.

It will work again for a while then crash.

Ctrl alt del doesn't show windows Explorer, so I can't turn it off.

Surfing the internet, some people say the shell extensions are the problem and to turn them off, but they all want allows you to download the software from their Web sites to show extensions... I am wary of downloading something from someone, I don't know if have not done this.

Not sure that the problem is... computer is completely up to date.

I think that the problem may have begun because the last windows update but I can't be sure.

Any help would be appreciated... can't keep turning off my computer during the day!

Thank you

I think I have the answer.  Has taken ALL DAY!

Malware.

About four months ago, I downloaded something nasty. It was very obvious that the toolbar in internet explore was changed etc.

Immediately contacted Symantec (I have Norton Internet Security): paid $100 to remove the offender to ensure. Did not see pictures weird or redirected to websites unwanted:

Thought I'd hired a professional and the work was well done!

Just pay a (larger) another sum to Lenovo. They took almost four hours to determine and correct the problem and the culprit was the remains of the VERY SAME malware, buried deep! I never had the problem of a virus.

OK now I want only a little (okay, big) RANT.

Things seem to be working very well now. Symantec and asked for a refund. Also to check why it is not removed correctly in the first place. He said probably, I downloaded the malware even once again and they only guarantee their work for 7 days. How was I supposed to know that the pieces have been buried deep into my computer, causing havoc, that nothing was visible?

To have Microsoft hired but Lenovo at least offer a one year support plan. Apparently, Microsoft will sell only support plans to Americans, non-Canadian (said to me on the phone when they offered the package and discovered then I lived in the Canada and withdrew the offer, would NOT take my money).

Thanks for trying to help, they offer honest help. This rant is not directed against you.

I am of course not at all happy at hundreds of dollars and hours spent being at the other end of the "guilty client game" the supposed expert virus (Symantec) and apparently being the Canada excludes the purchase of a paid Microsoft support plan (Americans are of course welcome to spend their money with Microsoft).

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