If the Power Supply is not providing enough load, that can cause system stability issues. They are always working before they are not so that is something you can try replacing.
Regarding minidump files, I do not recommend sharing them online as savvy users can extract some information from them.
You can use the WinDbg “Preview” from the Microsoft store to read your mini dump files. If the issue is power related, the minidumps may not be as helpful.
Great advice above but some additional advice. Some programs can be ‘authorized’ to access your account so depending on the platform, you may need to look for “connected services” and purge them.
It would be advisable to take it to a repair shop as soon as possible so that way they can take it apart and clean the corroded components. With this in mind, many shops have a default tear down fee because it takes time and energy to even attempt to do this and there’s no guarantee that they will be able to actually fix it.
Have you checked the temps? Is your i7 a KF model or a K? If it is just a K, have you tried the system without the GPU and just onboard video?