BSOD after any install

I installed some additional RAM and since then have had regular crashes. I tried removing the additional memory but still got the crashes so reinstated it.
It appears to me that the crashes happen when I try to start up after a (successful) install of any program. I ran all checks/tests after crash - all passed. Every time a roll back to previous system image works to get it going again. Any ideas? Thanks

Right, installing incompatible memory can cause lots of problems.

Please run memtest86 by following these instructions to test for bad RAM as you have memory management bugchecks.

RAM - Test with Memtest86+

Run it for at least 8 passes to determine whether the RAM is faulty or not

Code:

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*                        Bugcheck Analysis                                    *
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Use !analyze -v to get detailed debugging information.

BugCheck 1E, {ffffffffc0000005, fffff80003cbd4ac, 0, ffffffffffffffff}

Probably caused by : memory_corruption ( nt!MiUpdateWsleHash+13c )

Followup: MachineOwner

Before changing any drivers can you please create a restore point. If you don't know how then follow these instructions.

System Restore Point - Create

It looks like a monitor filter driver is causing issues. Can you please update the driver from this link.

Mozy Support Main Home Page

Code:

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*                        Bugcheck Analysis                                    *
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Use !analyze -v to get detailed debugging information.

BugCheck 24, {c08a5, 0, 0, 0}

Unable to load image \SystemRoot\system32\DRIVERS\MOBK.sys, Win32 error 0n2
*** WARNING: Unable to verify timestamp for MOBK.sys
*** ERROR: Module load completed but symbols could not be loaded for MOBK.sys
Probably caused by : Ntfs.sys ( Ntfs!NtfsPagingFileIo+155 )

If and only if these don't fix your problems then please enable Driver Verifier.

Driver Verifier - Enable and Disable