I got this error while updating android studio from version 4.1 to version 4.1.1 in windows 10. I closed android studio from Task Manager and run android studio as Administrator but same error.
Following error output is in C:\Users%User%\AppData\Local\Google\AndroidStudio4.1\log\idea_updater.txt
12/11 16:37:42 ERROR Runner.install - prepare failed
java.io.IOException: Data error (cyclic redundancy check)
at java.io.FileInputStream.readBytes(Native Method)
at java.io.FileInputStream.read(FileInputStream.java:255)
at java.io.BufferedInputStream.read1(BufferedInputStream.java:284)
at java.io.BufferedInputStream.read(BufferedInputStream.java:345)
at java.io.FilterInputStream.read(FilterInputStream.java:107)
at com.intellij.updater.Digester.doDigestStream(Digester.java:110)
at com.intellij.updater.Digester.digestStream(Digester.java:103)
at com.intellij.updater.Digester.digestRegularFile(Digester.java:55)
at com.intellij.updater.Patch.digestFile(Patch.java:469)
at com.intellij.updater.PatchAction.isModified(PatchAction.java:187)
at com.intellij.updater.PatchAction.doValidateNotChanged(PatchAction.java:155)
at com.intellij.updater.BaseUpdateAction.validate(BaseUpdateAction.java:92)
at com.intellij.updater.Patch.lambda$validate$0(Patch.java:306)
at com.intellij.updater.Patch.forEach(Patch.java:457)
at com.intellij.updater.Patch.validate(Patch.java:305)
at com.intellij.updater.PatchFileCreator.prepareAndValidate(PatchFileCreator.java:55)
at com.intellij.updater.Runner.install(Runner.java:357)
at com.intellij.updater.Runner.main(Runner.java:138)