Question edited for clarity and fix the written English.
You bought a cheap and nasty Inverter and what ever you plugged into it exceeded the load, it beeped and failed to deliver! What did you plug into it?
'make model (what it is), and also for the inverter and well as the load item.
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System file corruption. I remember it happened to me some years ago. You'll need a way to boot that is not your corrupted disk like a repair disk or a bootable USB. always make/keep a repair disk for times like these.
Here's info on how to fix it once you've found a way to boot with the same windows version as you have on your laptop:
https://www.drivereasy.com/knowledge/0xc0000225-error-code-on-windows-10-fixed/#m1
good luck!
Here are some steps you can try to get your Magnet (KARLSON) double oven out of demo mode:
Press and hold the "Timer" button for 5 seconds.
If the above step doesn't work, try pressing and holding the "Timer" and "Cook Time" buttons simultaneously for 5 seconds.
If the oven still remains in demo mode, try unplugging it from the power source for 30 seconds and then plugging it back in.
If none of these steps work, please refer to the user manual or contact Magnet's customer support for further assistance
No details given, but let's guess a laptop because you are in the category 'Computers and Internet'.
All questions need 'make model (what it is)' as first 3 words please.
Power down the computer
Remove the battery
Run the computer on mains power
Close down the computer
Unplug from the mains
Press and HOLD the Power button for a FULL 2 minutes.
Insert the battery, plug into the mains and power on.
If that doesn't fix it, you need a digital multimeter to check the battery charger unit is providing voltage at the connector plug, typically 11.1 volts or 14.8 volts, to as much as 19 volts.
Another possibility is that the power connection port has dry joints or damage to the motherboard connector through constant use.
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A notice from Microsoft;
Note: Using Third Party Software, including hardware drivers can cause serious problems that may prevent your computer from booting properly. Microsoft cannot guarantee that any problems resulting from the use of Third Party Software can be solved. Using Third Party Software is at your own risk.
You may find software by using google search or Bing, (other search engines are available) but it will be a download, not a CD.
I wonder what to?????
All questions need 'make model (what it is)' as first 3 words.
And you posted to the category 'Computers'. You have 40,000 to choose from, so a major fail! Try these
Island Mediquiphttps://www.islandmediquip.com > doc > pdf
PDF
Quick Reference Guide. - Altair. Part no: Altair 150kg/330lbs: North America ... the hand control or on the control panel of the lift pressed in. Hook onto ...
2 pages
Under contract still ... request the code from your service provider.
(Subscriber Identity Module lock) A function in GSM cellphones that restricts the phone's use to a particular cellular carrier identified by a SIM card. SIM locks are used to ensure subscribers finish their service contracts. If the contract period is over, the phone may be unlocked by entering a code from the carrier.