can't reinstall or update due to memory error

Avast Free Antivirus / Premium Security
1

I recently installed new ram in my laptop, and Avast suddenly would not load due to a memory error.

I’m not having any issues with any other programs, but Avast won’t load on boot-up.

I tried to uninstall and use a new install but get a similar problem and I can’t get the new or the old version to install as the install gui won’t initialize.

I don’t like the absence of “protection” and would like to correct this ASAP.

Got any suggestions?

2

What os/sp?
What exact version of avast?
What is the exact error message?

3

I find that it helps to run a disk error-check with both filesystem errors and bad sectors checked for and corrected if necessary. Windows can behave unexpectedly if files are temporarily ‘indisposed’ due to errors. In any case, it is a good thing to occasionally run such a scan. Neither does it do any harm to reassure that RAM is OK by running Memtest.

It may not fix the problem but, at least, you will have eliminated HDD and RAM from your enquiries. The possibilities of the effects of a dicky file system are often overlooked.

4

I’ve done a scan, and checked the memory and all seems to be fine.

I still get an error with instup.exe, saying I get an unknown software exception (0xc06d007e) in the application at location 0x752c42d.

Is this a software conflict? If so, how can I identify it?

5

Here’s some help on checking the ram in your system:
http://www.computerhope.com/issues/ch000149.htm
See if that gives you any clues.

6

Here is older thread on instup: https://forum.avast.com/index.php?topic=145171.0
“If” all that has changed is you “added” memory then obviously that is suspect.
You can try to do a REPAIR on Avast or then an clean un-re install…see my signature on How-To.
If this does not work then something is wrong with the memory and other install programs just have not hit those locations.
My BIGGER concern is if the memory is bad then you can get O/S BSODs and other nasty things.
I would invest a lot of time to make sure the memory is OK and if you suspect return and get new.
Also, are you sure the memory you bought is correct type/config for the laptop ?

If you go into the BIOS on boot typically there is a memory test function…typically these are best…I’d run and check.
Windows also has a tool:
http://www.cnet.com/how-to/test-your-ram-with-windows-memory-diagnostic-tool/
http://www.wintuts.com/Windows-Memory-Diagnostics-Tool
https://www.youtube.com/watch?v=GNhmXU0-IhA

If not: http://www.memtest86.com/