Navalny was kept when he got back to Russia last year, subsequent to enduring a harming he accused on the Kremlin.
He is now serving three and a half years in prison for breaking bail conditions while in clinic.
An appointed authority has now viewed him to be liable of misrepresentation and hatred of court.
Investigators blamed him for taking $4.7m (£3.5m) of gifts given to his presently prohibited associations, including his enemy of debasement establishment.
Conveying her decision, Judge Margarita Kotova said Navalny had done "the robbery of property by a coordinated gathering".
The new sentence replaces his previous prison term, so the resistance chief will presently need to serve exactly seven years in a most extreme security jail, with a lot stricter circumstances and undeniably more remote than the prison in Pokrov east of Moscow where he has spent over a year.
A noticeably withered Navalny collapsed his arms and traded remarks with his legal advisor as the decision was perused out.
Blaming the experts for sticking his "final word" in court, he tweeted that he and his allies would keep on battling restriction to "carry reality to individuals of Russia".
Malmö: Two ladies killed after vicious assault at Swedish school
Two educators in their 50s have kicked the bucket after a savage assault at an auxiliary school in the southern Swedish city of Malmö, police say.
A 18-year-old understudy at the school has been captured on doubt of homicide.
Neighborhood media report that the casualties were wounded, yet no guns were utilized in the assault.
The two ladies, representatives of Malmö Latin School, were taken to emergency clinic by rescue vehicle yet passed on from their wounds.
At a news gathering on Tuesday morning, police said the suspect was captured only 10 minutes after the alert was raised.
Officials showed up at an evidently quiet school, yet tracked down the two harmed ladies and the suspect on the third floor. Swedish media source Aftonbladet reports that he was found with a hatchet and a blade.
The 18-year-elderly person had no crook record or history of dubious way of behaving, police said, however examinations were proceeding. Police said they would talk with the suspect and numerous others from the school on Tuesday.
The thought process stays obscure and there is at this point no proof of a strange connection between the understudy and two educators.
Malmö head of police Petra Stenkula let journalists know that the presume's house was being looked and that police were meeting different understudies and searching for any recorded film that could exist.
She likewise said officials were examining reports in Swedish media that the presume called the police himself, supposedly conceding to having killed two individuals. Others likewise called the crisis administrations during the occurrence.
Around 50 individuals, the two understudies and instructors, were in the structure when the assault occurred. Police were told at 17:12 (16:12 GMT) on Monday, and the suspect was confined by 17:22.
Police cleared the school and looked through its grounds, however found "no sign" of additional culprits.
Educators and understudies let nearby media know that police had entered the school with their weapons attracted and requested them to remain secured in their homerooms for a long time.
The enormous optional school in Sweden's third-biggest city is notable. It was initially established in 1406 as a congregation school and moved to its present area in the last part of the 1800s.
All classes booked for Tuesday had been dropped, the school's site said. Emergency support is additionally being made accessible to understudies.
"This is totally awful," headteacher Fredrik Hemmensjö told the Aftonbladet paper, saying there had been "destructive brutality" at the school.
It is the third blade assault at a school in the Skåne area somewhat recently, however police have not laid out any connection between this assault and the previous non-lethal episodes.
Officials said they were all the while attempting to work out what was behind the episode.
"Presently a lot of work anticipates to have the option to get what occurred and the fundamental rationale in this horrible occasion," said Malmö North police boss Åsa Nilsson.
Swedish Prime Minister Magdalena Andersson said she had heard the news with "pity and disappointment".
Composing on Facebook, she said: "Presently the police and investigators should figure out what occurred, with the goal that the individual behind this is considered responsible for their activities."
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