what is a bad check sum?

Question

i tried downloading spybot updates and it said bad check sum and wouldnt allow the download

Answer 1

If you search for updates and a "bad checksum" is displayed, there is a simple reason - millions of people are trying to download from the same server.See link below from spybot s/d where they
tell you exactly this.

In order to overcome the problem, please have a second look at the update menu bar after searching for new updates. Therefore choose Update from the navigation bar on the left. Now you will see the update menu bar. It has a pull-down item to select a mirror. Click the arrow beside it, and select a different location to update.

hope this helps.

Answer 2

This has happened to me quite frequently in the past...

The answer seems to be: Only check mark 2 or 3 update downloads at one time..then select- download updates, as you always do. When those have successfully downloaded, mark 2 or 3 more and do it again...until you have them all.

*if it still doesn't work with 2 or 3 check marked, do one at a time...it's quirky.

Seems to be a problem most, when their server is busy...

I still use version 1.4, but, there is a newer version of SpyBot -Search & Destroy available. It is version 1.5-

An official answer from SpyBot is this-

*"Bad Checksum" problems can be overcome in most cases by changing the download server (site) as follows:
Do not click "Search for Updates" again.
Using the pull-down site selection menu (between the "Search for Updates" and "Download Updates" buttons) select another server.
After changing the download server click "Download Updates" again.
If you get another "Bad Checksum", repeated Steps 2 & 3 (using a 3rd or 4th server if necessary) until all updates are received.

Hope this helps...
---

Use protection,
your computer will thank you.

Answer 3

Any data that is transmitted has to be verified at the other end to make sure it has reached correctly. This happens between processor and RAM as well as between two different computers on the large Internet.

One method of verifying this data is to calculate the checksum. The source of the data sends a checksum and the data and the receiver takes this data, calculates its checksum and compares it with the checksum it has received from source. If they match, it is a good chance that the data is accurate. If they don't (bad checksum), then the data was corrupted on way and is invalid.

It seems there is a problem with connection or with the program. If you are able to download other files without any problems, you might want to re-install spybot and try again. If your Internet is generally slow and your downloads turn out to be corrupted, something is wrong with the connection.

Answer 4

Normally I use this to verify an ISO download to see it good. It may be when you downloaded the update it became corrupt in the download. Try downloading again if possible.
The link a short explain and may help you understand.
http://www.webopedia.com/TERM/C/checksum.html

Answer 5

That means something is wrong with the file. Try re-downloading it again. Double check the correct site that your are dling from.

Answer 6

Means that the file that you downloaded is not legitimate
corrupt or matches the signature of the file that the vendor or
author of the software released.

Answer 7

The modules you are trying to update do not match the values that the updated modules are trying to verify.

Answer 8

have no idea however have had similar problems

use search engine for the error code or whatever is written in the message in inverted commas. click on one of the techie forums, and read what others with your problem have been told

Answer 9

retail stores consider anything over 25.00 . in most states over 100.00 is prosicutible . under is usually handled in small claims court . check local law agency to accertain their laws .