Invalid digital signature

[julian2 23]

Hi all,

I just wanted to reinstall v5. Unfortunately I am unable to install the scenery part. I always get invalid digital siganture error message on several files. I already downloaded several files which several browsers and download managgers. The error message seems to come randomly. Sometimes it is the cab file 5, sometimes 2, sometimes 8. I tried already all the steps from the pinned topics in the forum. Antivirus off, updated system, USB plugged off, etc. The MD5 checksum is correct and also before the installation I checked under properties of the file the digital signatures. They look all good but after the error message it says the digital signature is invalid. I also tried another SSD to install but it happens again. The problem only happens with v5. I installed v4 the day before with no problems. I am using Windows 10. 

Thanks for any kind of support. Best regards

Julian

[Bob Scott 7,715]

If you're getting these issues on different files each time you try it, it suggests a hardware problem to me...either an unstable overclock or an iffy RAM stick, perhaps.  If it were a corrupt file it should happen at the same place each time, and you'd expect the MD5 hash to be bad as well.

Another less likely possibility is a virus trying to insert malicious code into the files and causing the signature check to fail.

[julian2 23]

Hi w6kd,

at the moment it is always the scene6.cab and scene5.cab file. I also got radomly CTD and green screens downloading large files like while downloading the MSFS installation or orthos for XP. Could this be indicating a broken RAM? I dont use any overclock. How do I check if it is the RAM?

 

Thanks and best regards

 

Julian

[Bob Scott 7,715]

Get a copy of the freeware utility Memtest 86+, and run it through a good 6 hour run...5-6 passes.

Also run a good malware finder like Malwarebytes.

 

[julian2 23]

Hi all,

problem is solved. The issue was a broken RAM. Had 4 RAM Sticks with each 8GB. I took out the first two and the same problem happened. Then I took out the other two and the problem disappeared. My system is now rockstable. 

Thanks for your help.

Julian