Possible connection electricity issues and random shutdown/restarts?

Hello everyone, I'm having some weird computer issues and maybe my thread title means I'm seeing things, but anyway...
I currently have three computers:
- a cheap HP laptop with Windows XP for university, can only cope with a limited number of things but has worked for five years
- an Asus laptop, around 900 euros, much faster, for home use
- A Lenovo laptop, also around 900 euros, very fast but less HD capacity, for my future job as a translator
A month ago, I sent my Asus computer back for repair. Reason: after having worked fine for a year and a half, it suddenly started shutting off randomly and seemingly without any reason and after a reboot, the clock still showed the time it shut down. The EventViewer showed critical kernel-processor-power 37 (7) errors. It did not overheat or work any slower. The laptop came with Windows 8.1, but I updated it to 10 which didn't resolve the problem. It shut off, for instance, during Mega downloads or during copying to my external harddisk. Asus replaced my motherboard which was apparently broken and sent it back. Naturally, they erased the whole harddisk so I had to re-install Windows 8.1. During the installation, it shut off again. I know for a fact it also shut down in other houses.
Because I cannot afford to be without my own computer, I bought a Lenovo laptop which I'm planning to use when I have a job. It worked like a charm for five days in the living room until it suddenly restarted in my room, twice when I was in my university e-mail account and tried to attach a file from my external harddisk and once when I opened IE10. The clock didn't have any problems. I'll paste the EventViewer info below:
Information 11/07/2016 12:37:56 Ntfs (Microsoft-Windows-Ntfs) 98 None
Information 11/07/2016 12:37:04 Power-Troubleshooter 1 None
Information 11/07/2016 12:37:04 BTHUSB 18 None
Information 11/07/2016 12:37:03 Winlogon 7001 (1101)
Information 11/07/2016 12:37:02 Kernel-Boot 27 None
Information 11/07/2016 12:37:02 Kernel-Boot 25 None
Information 11/07/2016 12:37:02 Kernel-Boot 32 None
Information 11/07/2016 12:37:02 Kernel-Boot 18 None
Information 11/07/2016 12:37:02 Kernel-Boot 30 None
Information 11/07/2016 12:37:00 Kernel-General 1 None
Information 11/07/2016 12:32:38 Kernel-Power 107 (102)
Information 11/07/2016 12:32:35 Kernel-Power 42 (64)
Error 11/07/2016 12:32:34 Service Control Manager 7011 None
Warning 11/07/2016 12:32:22 DNS Client Events 1014 (1014)
Warning 11/07/2016 12:32:11 DNS Client Events 1014 (1014)
Information 11/07/2016 12:32:03 Winlogon 7002 (1102)
Information 11/07/2016 12:32:03 User32 1074 None
Error 11/07/2016 12:32:01 Service Control Manager 7031 None
Error 11/07/2016 12:32:01 DistributedCOM 10016 None
Information 11/07/2016 12:32:01 User32 1074 None
Warning 11/07/2016 12:31:58 DNS Client Events 1014 (1014)
Warning 11/07/2016 12:31:28 DNS Client Events 1014 (1014)
Warning 11/07/2016 12:31:18 DNS Client Events 1014 (1014)
Warning 11/07/2016 12:31:12 DNS Client Events 1014 (1014)
Warning 11/07/2016 12:31:09 DNS Client Events 1014 (1014)
Warning 11/07/2016 12:31:00 DNS Client Events 1014 (1014)
Now, all of my computers are set up in my bedroom and most of the problems occurred there. We also ave electricity issues in the house, more specifically in my room, which we haven't sorted out yet. For instance, I can't have my shutters rolled down or up without my surround speakers shutting down and now the electricity throughout the entire flat switches off when my shutters are activated. Also, my new Lenovo computer has major problems connecting to the Internet in my room (it keeps connecting and disconnecting), but my old HP computer doesn't have these issues, nor does it restart/shut down randomly. My Asus computer also did not have internet problems.
I just tried sending the same e-mail in the living room and my computer didn't restart. So my question now is, what does this all mean? My Asus motherboard was broken, so I'm guessing my room can't have caused that problem. But a brand-new laptop restarting after five days? Is this a Windows problem? Could anyone tell me whether electricity issues can cause a laptop which has a full battery to restart/switch off? If not, why do both Chrome and IE10 crash in my bedroom when attaching a file? I'm so confused and quite frankly, getting totally sick of Windows.

Hello and welcome to TenForums :)

I do not like the sound of your electricity supply problems and frankly if activating shutters turns off the whole supply there is a serious wiring fault which is tripping the main fuse. There could be huge voltage spikes on your supply interfering with your computers and maybe frying the components. Certainly you can expect a laptop to be ruined by such spikes. You should use surge protected sockets or extension leads for your computer equipment to protect against this type of thing.

I think your No 1 priority should be to get the electrics sorted before anything else.

Okay, newest development. Now my computer restarted after having problems connecting to the Internet. More specifically, I was using both computer and iPhone at the same time and our connection always has problems there. Gonna call our phone company.

It sounds like what you need is an AC voltage stabilizer until you can get your electrical problems fixed. It will work to keep the voltage going to your electronic components at a stable 120 V. Better yet, you can get an uninterruptible power supply (UPS) that has voltage regulation built into it.