-
Since there is a restore card, any changes cannot be saved. Unless you remove the restore card.
Whether it can be achieved by turning off the polar e-classroom as soon as it is turned on depends on: 1. How is the computer's restore card set up? 2. Whether the system allows you to enter the safe mode.
Extended Information: Restore card, the full name of hard disk restore card, is used in the computer operating system.
A type of PCI expansion card that is protected. Every time you boot up, the hard drive restore card always allows some or all of the hard disk partitions to recover the previous contents. In other words, any modification to the hard drive protected partition is invalid, thus protecting the hard drive data.
This is of great value for maintaining computers used in the public domain, so it is widely used in school computer labs, libraries, and Internet cafes.
-
I believe that many people often accidentally delete or empty the audio files stored in it when using *** or iPad, which will also cause the loss of data files inside it, which will also affect our normal use. So for this phenomenon, when the computer audio file is deleted by mistake, how to get it back? How can I get my lost files back?
When the computer data files are lost, it is recommended to install professional data recovery software in time to read, write and scan the disk of the lost data, take "accidental deletion of desktop files" as an example, you can follow the following steps to recover the files:
1. Install the professional data recovery software and select the "Quick Scan Recovery" mode in the main interface of the software. The Quick Scan Recovery mode is suitable for quickly scanning the disk where we have lost data, and it is able to scan the files that we have deleted or emptied by mistake in a short period of time.
2. Select "Where the original data file is stored", where the file is stored, you can directly select the disk where the data was deleted by mistake, for example, if the desktop file is deleted by mistake, you can directly select the corresponding "Desktop", and click "Start Scan" below to "Recover" mode to automatically perform a quick scan of the desktop where the lost data is lost.
3. Wait for the end of the scan, and then you can select according to the file path or the "file type" in turn.
Select the files we need to recover and click on the "Recover" option below to get back the lost files.
It should be noted that when the data recovery software is installed, it cannot be installed on the disk where the data was lost, and the location where the recovered files are stored cannot be directly stored on the disk where the data was lost.
The above is the introduction of the relevant operation methods of "how to recover lost data", I believe you also have a certain understanding, in order to be able to find the files we have lost, when the data is lost, you can also follow the above operation tips to repair the files in turn. At the same time, there are relatively many data recovery software, and I hope that you can choose the right software according to your own needs.
-
Ours too.,After deleting it, it's there again after restarting.,But you can use the boot to press f8 to enter the safe mode to delete it.。
-
It depends on what kind of recovery software is installed.
-
Reason for automatic shutdown of the computer:
The computer system is poisoned or malware, the CPU fan is broken, the CPU temperature is too high, the temperature is overheated, the power supply is broken, or new hardware is added, the power supply is insufficient, the graphics card or graphics card fan is broken, the motherboard is broken, the motherboard core is overheated, etc., the computer will automatically shut down.
Auto Shutdown Troubleshooting Methods:
1. There may be a problem with the BIOS settings, enter the BIOS to restore the default settings or take out the battery of the motherboard, reverse the buckle discharge, and wait for 5 minutes to reverse install it. Purpose: To restore the default values of the BIOS settings and eliminate the automatic reboot or shutdown of the BIOS cooling presets.
2. If the computer shuts down automatically when using a certain application software, the automatic shutdown failure may be caused by this program software, and the program software can be uninstalled.
3. Then check the power supply, the power supply quality is poor, aging or the power is too small, which can not meet the power supply needs of the computer accessories, and the high-power and high-quality power supply can be replaced.
4. Then use the elimination method to check the memory, graphics card, CPU, CPU fan, motherboard, etc.
5. Check the memory, the memory quality is not up to standard, poor heat dissipation, overclocking, mixing and inserting of different brands of memory and the CAS value setting is too low, etc., which can cause the computer to shut down automatically, and the memory parameters can be adjusted accordingly in the BIOS.
6. Check the motherboard, the motherboard aging, capacitor failure or pulp, the motherboard power pins, the motherboard and the chassis backplane short circuit can cause automatic shutdown, you can take the motherboard out of the chassis to check or test, then check whether the CPU fan rotation and the CPU temperature is normal, and then check whether the bottom of the CPU fan heatsink is dry, if it is dry, clean the silicone on the CPU fan, and then recoat the good silicone. If the fan is not normal, replace the CPU fan.
7. Cleaning method: It is a method to eliminate faults by cleaning the dust of the parts in the computer host. Dust is one of the factors that can also cause computer automatic shutdown failures, dust can cause parts aging, pin oxidation, poor contact and short circuit and other failures.
For these faults caused by dust, it is generally more effective to use the cleaning method.
8. The power supply system is unstable, which can also cause the occurrence of automatic shutdown faults, and a UPS backup power supply with voltage stabilization function can be considered.
Polar Classroom broadcast is very stuck, the latency is very high, it may be a problem with the graphics card or the network is not good, you can reduce the picture quality a little. >>>More
Quiet classrooms, spacious classrooms, bright classrooms, clean classrooms, warm classrooms, calm classrooms. >>>More
1.Press the Delete key to enter the BIOS, go to the Advanced Setup Page, find the Quick Boot item, and set it to EnabledThe self-test will be skipped. >>>More
1. Personal account monthly unsubscription: log in directly. >>>More
There are several ways to unsubscribe from a completed business: >>>More