In the search box on the taskbar, type settings and select Settings. Under Manage other accounts, select Add an account. At the bottom of the page, select Sign in without a Microsoft account. Select Local account. Enter a name for the new account. If you want this person to sign in with a password, enter and verify the password, add a password hint, and then select Next.
Select Finish. I suggest you to create another administrator user account by referring to Set up accounts on Windows 10 article.
If the issue still persists, I suggest you to enable the built in administrator account and check if it allows you to make the administrative changes with the files. You need to run the command from an elevated command prompt. To do that you need to do the following:.
Was this reply helpful? Yes No. Sorry this didn't help. Thanks for your feedback. It is possible it is Ransomware but you would normally get a warning demanding some payment. If you have any files in the standard personal folder locations Documents, Pictures etc check those. Ransomware would encrypt those first as that is where most people would have stored their documents. Personally I don't think a system restore would work as personal files aren't normally included.
However you could look at previous version of a single file. If you right click and select properties then select the Previous Versions tab and see if windows has a record of a previous version. You can select to Open it and see if it can be read. There would be no harm looking at system restore but you would have to look at the restore points available to you to see if it is worth it. Are there any obvious file extensions appended to or with your encrypted data files i.
Is there any notice message which says something like Actual ransomware usually will have obvious indications signs of infection I believe that this problem is because you are trying to decrypt data that is not encrypted or not properly encrypted. In your decrypt method, the CipherOutputStream hides all exception that the Cipher class may be throwing.
See javadoc for CipherOutputStream :. To expose the problem, you may want to implement the cipher usage manually.
Here is a quick example:. The algorithm you posted in your question seems to work fine for valid inputs. Using this, and testing both with a text file and a JPG file, your algorithms executed flawlessly.
However, when using an invalid input to the decryption algorithm, then the problem you described started to appear. For testing, lets imagine that we make the "mistake" of trying to decrypt the file that was in clear like so just changing the parameter passed to decrypt in the main :. Then of course the padding on the input to the decrypt method will be wrong and we should get an exception. Using your version of decrypt however, there is no exception.
All we get is an empty file. Using the modified version fo the decrypt method that is shown above we get the following exception:. Stack Overflow for Teams — Collaborate and share knowledge with a private group.
Create a free Team What is Teams? Collectives on Stack Overflow. Brithny is a technology enthusiast, aiming to make readers' tech life easy and enjoyable.
She loves exploring new technologies and writing technical how-to tips. On her spare time, she loves sharing things about her favorite singer - Taylor Swift on her Facebook or Twitter.
Mahesh is an experienced computer tech writer. He's been writing tech how-to guides for about 8 years now and has covered many topics. He loves to teach people how they can get the most out of their devices. It's far from perfect, partly because today's advanced disk technology makes data-recovery more difficult than it was with the simpler technology of the past.
It comes with a selection of advanced features, including partition recovery, formatted drive restoration, and corrupted file repair. Screen Recorder. Transfer Products. File Management. More Products. You may require further help in difficult data loss situations, like reformatting drive, RAW disk, partition loss, repartition failures, and system boot error. They offer the following services after a FREE diagnosis: 1. Unformat the drive 2.
However, decrypting files encrypted with old keys will still cause difficulties. If this is an issue, you can add a policy preference that will bypass SE packet Integrity Protection and allow older keys to be used. Please contact support for details on how to enable older keys to be used. If you see a broken image, please right-click and select 'Open image in a new tab'.
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